[Patch] Bump faraday to ~> 0.15.0

[utkarsh2102]

Hi,

In Debian, we are using the following patch and I thought you might be interested in the following:

--- a/behance.gemspec
+++ b/behance.gemspec
@@ -17,7 +17,7 @@
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
 
-  gem.add_runtime_dependency     'faraday',            '~> 0.14.0'
+  gem.add_runtime_dependency     'faraday',            '~> 0.15.0'
   gem.add_runtime_dependency     'faraday_middleware', '~> 0.12.2'
   gem.add_runtime_dependency     'json',               '~> 1.8.1'
   gem.add_development_dependency 'webmock',            '~> 1.8.10'