Bump certifi from 2020.6.20 to 2022.12.7 in /requirements

Bumps [certifi](https://github.com/certifi/python-certifi) from 2020.6.20 to 2022.12.7.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](https://github.com/certifi/python-certifi/compare/2020.06.20...2022.12.07)

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

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

requirements/prod.txt

@@ -1,5 +1,5 @@
 beautifulsoup4==4.9.1
-certifi==2020.6.20
+certifi==2022.12.7
 chardet==3.0.4
 click==7.1.2
 elasticsearch==7.8.0