Again: Certificate verify failed (unable to get local issuer certificate)

[ebramirez]

I'm getting the same error as #29 again, this time in CI pipeline in Linux:

/usr/local/bundle/gems/async-io-1.32.2/lib/async/io/generic.rb:216:in `connect_nonblock': SSL_connect returned=1 errno=0 state=error: certificate verify failed (unspecified certificate verification error) (Faraday::SSLError)
	from /usr/local/bundle/gems/async-io-1.32.2/lib/async/io/generic.rb:216:in `async_send'
	from /usr/local/bundle/gems/async-io-1.32.2/lib/async/io/generic.rb:62:in `block in wrap_blocking_method'
	from /usr/local/bundle/gems/async-io-1.32.2/lib/async/io/ssl_socket.rb:47:in `connect'
	from /usr/local/bundle/gems/async-io-1.32.2/lib/async/io/ssl_endpoint.rb:92:in `connect'
	from /usr/local/bundle/gems/async-http-0.56.5/lib/async/http/endpoint.rb:201:in `connect'
	from /usr/local/bundle/gems/async-http-0.56.5/lib/async/http/client.rb:157:in `block in make_pool'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:258:in `create_resource'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:309:in `get_resource'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:275:in `block in available_resource'
	from /usr/local/bundle/gems/async-1.30.1/lib/async/semaphore.rb:80:in `acquire'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:274:in `available_resource'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:240:in `wait_for_resource'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:88:in `acquire'
	from /usr/local/bundle/gems/async-http-0.56.5/lib/async/http/client.rb:104:in `call'
	from /usr/local/bundle/gems/async-http-faraday-0.11.0/lib/async/http/faraday/adapter.rb:125:in `block (2 levels) in call'
	from /usr/local/bundle/gems/async-http-faraday-0.11.0/lib/async/http/faraday/adapter.rb:148:in `with_timeout'
	from /usr/local/bundle/gems/async-http-faraday-0.11.0/lib/async/http/faraday/adapter.rb:124:in `block in call'
	from /usr/local/bundle/gems/async-1.30.1/lib/kernel/sync.rb:29:in `Sync'
	from /usr/local/bundle/gems/async-http-faraday-0.11.0/lib/async/http/faraday/adapter.rb:102:in `call'
	from /usr/local/bundle/gems/faraday-1.7.2/lib/faraday/middleware.rb:18:in `call'
	from /usr/local/bundle/gems/faraday-http-cache-2.2.0/lib/faraday/http_cache.rb:283:in `fetch'
	from /usr/local/bundle/gems/faraday-http-cache-2.2.0/lib/faraday/http_cache.rb:187:in `process'
	from /usr/local/bundle/gems/faraday-http-cache-2.2.0/lib/faraday/http_cache.rb:135:in `call!'
	from /usr/local/bundle/gems/faraday-http-cache-2.2.0/lib/faraday/http_cache.rb:115:in `call'
	from /usr/local/bundle/gems/faraday-1.7.2/lib/faraday/rack_builder.rb:154:in `build_response'
	from /usr/local/bundle/gems/faraday-1.7.2/lib/faraday/connection.rb:516:in `run_request'
	from /usr/local/bundle/gems/faraday-1.7.2/lib/faraday/connection.rb:200:in `get'
	from /usr/local/bundle/gems/sawyer-0.8.2/lib/sawyer/agent.rb:94:in `call'
	from /usr/local/bundle/gems/octokit-4.21.0/lib/octokit/connection.rb:156:in `request'
	from /usr/local/bundle/gems/octokit-4.21.0/lib/octokit/connection.rb:84:in `paginate'
	from /usr/local/bundle/gems/octokit-4.21.0/lib/octokit/client/repositories.rb:552:in `tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:113:in `block in calculate_pages'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:459:in `check_github_response'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:112:in `calculate_pages'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:131:in `github_fetch_tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:101:in `block in get_all_tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:459:in `check_github_response'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:101:in `get_all_tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/generator/generator_tags.rb:10:in `fetch_and_filter_tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/generator/generator.rb:54:in `block in compound_changelog'
	from /usr/local/bundle/gems/async-1.30.1/lib/async/task.rb:260:in `block in make_fiber'
/usr/local/bundle/gems/async-io-1.32.2/lib/async/io/generic.rb:216:in `connect_nonblock': SSL_connect returned=1 errno=0 state=error: certificate verify failed (unspecified certificate verification error) (OpenSSL::SSL::SSLError)
	from /usr/local/bundle/gems/async-io-1.32.2/lib/async/io/generic.rb:216:in `async_send'
	from /usr/local/bundle/gems/async-io-1.32.2/lib/async/io/generic.rb:62:in `block in wrap_blocking_method'
	from /usr/local/bundle/gems/async-io-1.32.2/lib/async/io/ssl_socket.rb:47:in `connect'
	from /usr/local/bundle/gems/async-io-1.32.2/lib/async/io/ssl_endpoint.rb:92:in `connect'
	from /usr/local/bundle/gems/async-http-0.56.5/lib/async/http/endpoint.rb:201:in `connect'
	from /usr/local/bundle/gems/async-http-0.56.5/lib/async/http/client.rb:157:in `block in make_pool'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:258:in `create_resource'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:309:in `get_resource'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:275:in `block in available_resource'
	from /usr/local/bundle/gems/async-1.30.1/lib/async/semaphore.rb:80:in `acquire'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:274:in `available_resource'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:240:in `wait_for_resource'
	from /usr/local/bundle/gems/async-pool-0.3.8/lib/async/pool/controller.rb:88:in `acquire'
	from /usr/local/bundle/gems/async-http-0.56.5/lib/async/http/client.rb:104:in `call'
	from /usr/local/bundle/gems/async-http-faraday-0.11.0/lib/async/http/faraday/adapter.rb:125:in `block (2 levels) in call'
	from /usr/local/bundle/gems/async-http-faraday-0.11.0/lib/async/http/faraday/adapter.rb:148:in `with_timeout'
	from /usr/local/bundle/gems/async-http-faraday-0.11.0/lib/async/http/faraday/adapter.rb:124:in `block in call'
	from /usr/local/bundle/gems/async-1.30.1/lib/kernel/sync.rb:29:in `Sync'
	from /usr/local/bundle/gems/async-http-faraday-0.11.0/lib/async/http/faraday/adapter.rb:102:in `call'
	from /usr/local/bundle/gems/faraday-1.7.2/lib/faraday/middleware.rb:18:in `call'
	from /usr/local/bundle/gems/faraday-http-cache-2.2.0/lib/faraday/http_cache.rb:283:in `fetch'
	from /usr/local/bundle/gems/faraday-http-cache-2.2.0/lib/faraday/http_cache.rb:187:in `process'
	from /usr/local/bundle/gems/faraday-http-cache-2.2.0/lib/faraday/http_cache.rb:135:in `call!'
	from /usr/local/bundle/gems/faraday-http-cache-2.2.0/lib/faraday/http_cache.rb:115:in `call'
	from /usr/local/bundle/gems/faraday-1.7.2/lib/faraday/rack_builder.rb:154:in `build_response'
	from /usr/local/bundle/gems/faraday-1.7.2/lib/faraday/connection.rb:516:in `run_request'
	from /usr/local/bundle/gems/faraday-1.7.2/lib/faraday/connection.rb:200:in `get'
	from /usr/local/bundle/gems/sawyer-0.8.2/lib/sawyer/agent.rb:94:in `call'
	from /usr/local/bundle/gems/octokit-4.21.0/lib/octokit/connection.rb:156:in `request'
	from /usr/local/bundle/gems/octokit-4.21.0/lib/octokit/connection.rb:84:in `paginate'
	from /usr/local/bundle/gems/octokit-4.21.0/lib/octokit/client/repositories.rb:552:in `tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:113:in `block in calculate_pages'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:459:in `check_github_response'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:112:in `calculate_pages'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:131:in `github_fetch_tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:101:in `block in get_all_tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:459:in `check_github_response'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/octo_fetcher.rb:101:in `get_all_tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/generator/generator_tags.rb:10:in `fetch_and_filter_tags'
	from /usr/local/bundle/gems/github_changelog_generator-1.16.4/lib/github_changelog_generator/generator/generator.rb:54:in `block in compound_changelog'
	from /usr/local/bundle/gems/async-1.30.1/lib/async/task.rb:260:in `block in make_fiber'