Bump gunicorn from 20.0.4 to 20.1.0 (#323)

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 20.0.4 to 20.1.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](https://github.com/benoitc/gunicorn/compare/20.0.4...20.1.0

)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

requirements.txt

 backports.tempfile==1.0
 Flask==2.0.0
 gevent==21.1.2
-gunicorn==20.0.4
+gunicorn==20.1.0
 futures
 fuzzywuzzy==0.18.0
 lxml==4.6.3