Merge pull request 'Update dependency mkdocs to v1.4.3' (#5) from renovate/mkdocs-1.x into main

Reviewed-on: https://git.nick-slowinski.de/nick-slowinski.de/docs/pulls/5

requirements.txt

@@ -11,7 +11,7 @@ Jinja2==3.1.2
 Markdown==3.3.7
 MarkupSafe==2.1.3
 mergedeep==1.3.4
-mkdocs==1.4.2
+mkdocs==1.4.3
 mkdocs-git-revision-date-localized-plugin==1.1.0
 mkdocs-material==9.0.6
 mkdocs-material-extensions==1.1.1