Bump certifi from 2021.5.30 to 2022.12.7

Bumps [certifi](https://github.com/certifi/python-certifi) from 2021.5.30 to 2022.12.7.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](certifi/python-certifi@2021.05.30...2022.12.07)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -16,7 +16,7 @@ autobahn==21.3.1; python_version >= '3.7'
 automat==20.2.0
 backports.zoneinfo==0.2.1
 blessed==1.18.1; python_version >= '2.7'
-certifi==2021.5.30
+certifi==2022.12.7
 cffi==1.14.6
 channels-redis==3.3.0
 channels==3.0.4