Bump certifi from 2022.6.15 to 2022.12.7

Bumps [certifi](https://github.com/certifi/python-certifi) from 2022.6.15 to 2022.12.7.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](certifi/python-certifi@2022.06.15...2022.12.07)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: indirect
...

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

Author: dependabot[bot]

requirements.txt

@@ -6,7 +6,7 @@
 #
 appdirs==1.4.4
     # via xml2rfc
-certifi==2022.6.15
+certifi==2022.12.7
     # via requests
 charset-normalizer==2.1.0
     # via requests