chore: Upgrade Python requirements

[edx-requirements-bot]

Python requirements update. Please review the changelogs for the upgraded packages.

[edx-requirements-bot]

List of packages in the PR without any issue.

• click changes from 8.4.2 to 8.5.0
• coverage changes from 7.15.4 to 7.16.0
• cryptography changes from 50.0.0 to 50.0.1
• edx-django-utils changes from 8.0.1 to 8.0.2
• imagesize changes from 2.0.0 to 2.0.1
• platformdirs changes from 4.11.3 to 4.11.5
• python-discovery changes from 1.5.2 to 1.6.0
• regex changes from 2026.7.19 to 2026.8.31
• ruff changes from 0.16.4 to 0.16.5
• simplejson changes from 4.1.1 to 4.1.2
• tox changes from 4.60.0 to 4.61.1
• uv changes from 0.12.5 to 0.12.7
• virtualenv changes from 21.7.4 to 21.7.7
• wrapt changes from 2.3.0 to 2.4.0