Bump gunicorn from 19.8.1 to 19.9.0

[dependabot-preview]

Bumps gunicorn from 19.8.1 to 19.9.0.

Release notes

Sourced from gunicorn's releases.

19.9.0

• fix: address a regression that prevented syslog support from working
  (#1668, #1773)
• fix: correctly set REMOTE_ADDR on versions of Python 3 affected by
  Python Issue 30205 <https://bugs.python.org/issue30205>_
  (#1755, #1796)
• fix: show zero response length correctly in access log (#1787)
• fix: prevent raising :exc:AttributeError when --reload is not passed
  in case of a :exc:SyntaxError raised from the WSGI application.
  (#1805, #1806)
• ❗️The internal module gunicorn.workers.async was renamed to
  gunicorn.workers.base_async since async is now a reserved word
  in Python 3.7.
  (#1527)

Commits

• 29f0394 Release version 19.9.0
• 3e265d4 Regenerate settings documentation
• c7c0f9d Update changelog
• bd833e0 Merge pull request #1796 from diegoholiveira/1795-rename-async-module
• f0c5499 Merge branch 'W7PEA-patch-2'
• 7891310 Use consistent style in nginx.conf
• 101f2da Merge branch 'patch-2' of https://github.com/W7PEA/gunicorn into W7PEA-patch-2
• d213103 Optimize by precompiling regex and using tuple for iterable copies.
• 557b919 Merge branch 'master' into 1795-rename-async-module
• 21f0adc Fix AttributeError when --reload was not passed (#1806)
• Additional commits viewable in compare view

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[codecov]

Codecov Report

Merging #48 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #48   +/-   ##
=======================================
  Coverage   70.27%   70.27%           
=======================================
  Files          12       12           
  Lines        1238     1238           
  Branches      174      174           
=======================================
  Hits          870      870           
  Misses        299      299           
  Partials       69       69

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[coveralls]

Coverage remained the same at 75.848% when pulling c0cedb0 on dependabot/pip/gunicorn-19.9.0 into b9c36c3 on master.