Module pkg_resources is deprecated

[sebix]

  /home/sebastianw/dev/intelmq/intelmq/lib/message.py:17: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
    from pkg_resources import resource_filename

Used in these files:

• intelmq/bin/intelmqctl.py
• intelmq/bin/intelmqsetup.py
• intelmq/bots/collectors/shodan/collector_stream.py
• intelmq/bots/parsers/ioc_extractor/parser.py
• intelmq/lib/bot.py
• intelmq/lib/message.py
• intelmq/lib/upgrades.py
• intelmq/lib/test.py
• intelmq/tests/bin/test_intelmqctl.py
• intelmq/tests/bin/test_psql_initdb.py
• intelmq/tests/bots/experts/asn_lookup/test_expert.py
• intelmq/tests/bots/experts/modify/test_expert.py
• intelmq/tests/bots/experts/tor_nodes/test_expert.py
• intelmq/tests/bots/experts/recordedfuture_iprisk/test_expert.py
• intelmq/tests/bots/experts/jinja/test_expert.py
• intelmq/tests/bots/parsers/hibp/test_parser_callback.py
• intelmq/tests/lib/test_message.py
• intelmq/tests/lib/test_upgrades.py
• intelmq/tests/lib/test_utils.py
• intelmq/tests/test_conf.py

[sebix]

postponing this to later as we have no fix yet