Bump certifi from 2020.4.5.1 to 2022.12.7 in /src/backend

Bumps [certifi](https://github.com/certifi/python-certifi) from 2020.4.5.1 to 2022.12.7.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](certifi/python-certifi@2020.04.05.1...2022.12.07)

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

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

src/backend/setup.py

@@ -7,7 +7,7 @@
         "backcall==0.1.0",
         "bcrypt==3.1.7",
         "beautifulsoup4==4.8.1",
-        "certifi==2020.4.5.1",
+        "certifi==2022.12.7",
         "cffi==1.14.0",
         "chardet==3.0.4",
         "click==7.1.2",