Bump certifi from 2020.6.20 to 2023.7.22 in /server/requirements

Bumps [certifi](https://github.com/certifi/python-certifi) from 2020.6.20 to 2023.7.22.
- [Commits](certifi/python-certifi@2020.06.20...2023.07.22)

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

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

Author: dependabot[bot]

server/requirements/base.txt

@@ -5,7 +5,7 @@ opendp==0.6.1
 Django==4.2
 asgiref>=3.3.2
 bleach==3.3.0
-certifi==2020.6.20
+certifi==2023.7.22
 chardet==3.0.4
 # django-cryptography==1.0
 django-extensions==3.0.9