[docs] make docs-serve/mkdocs builds failing because of jinja2 error

[conceptualshark]

Bug Description

The newest version of jinja is incompatible with mkdocs. Building locally and also via github actions on merges to main currently breaks.

Steps to Reproduce

1. pull main
2. run make docs-serve
3. get the following error:

AttributeError: module 'jinja2' has no attribute 'contextfilter' 

Expected behavior

Build the docs locally, and via github actions on merges

Environment

• Version:
• OS:
• Python Version:
• Docker Version:

Additional context

Mkdocs pushed a patch to limit the jinja version range. Updating the pinned version in requirements.txt should resolve the issue for now, but might not be the best strategy for versioning in the future.