Merge pull request 'Update dependency GitPython to v3.1.31' (#2) from renovate/gitpython-3.x into main

Reviewed-on: https://git.nick-slowinski.de/nick-slowinski.de/docs/pulls/2

requirements.txt

@@ -5,7 +5,7 @@ click==8.1.3
 colorama==0.4.6
 ghp-import==2.1.0
 gitdb==4.0.10
-GitPython==3.1.30
+GitPython==3.1.31
 idna==3.4
 Jinja2==3.1.2
 Markdown==3.3.7