chore: Upgrade Python requirements

[edx-requirements-bot]

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

Deleted obsolete pull_requests:
#260

[edx-requirements-bot]

List of packages in the PR without any issue.

• build changes from 1.4.0 to 1.5.0
• cachetools changes from 7.0.3 to 7.1.4
• click changes from 8.3.1 to 8.4.1
• coverage[toml] changes from 7.13.4 to 7.14.0
• django changes from 5.2.12 to 5.2.14
• filelock changes from 3.25.0 to 3.29.0
• lxml-html-clean changes from 0.4.4 to 0.4.5
• lxml[html-clean] changes from 6.0.2 to 6.1.1
• packaging changes from 26.0 to 26.2
• pip changes from 26.0.1 to 26.1.1
• platformdirs changes from 4.9.4 to 4.9.6
• pygments changes from 2.19.2 to 2.20.0
• pytest changes from 9.0.2 to 9.0.3
• pytest-cov changes from 7.0.0 to 7.1.0
• python-discovery changes from 1.1.1 to 1.3.1
• pytz changes from 2026.1.post1 to 2026.2
• setuptools changes from 82.0.0 to 82.0.1
• stevedore changes from 5.7.0 to 5.8.0
• tomlkit changes from 0.14.0 to 0.15.0
• tox changes from 4.49.0 to 4.54.0
• virtualenv changes from 21.1.0 to 21.3.3
• wheel changes from 0.46.3 to 0.47.0

[edx-requirements-bot]

These Packages need manual review..

• [MAJOR] code-annotations changes from 2.3.2 to 3.0.0
• [MAJOR] edx-lint changes from 5.6.0 to 6.1.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.78%. Comparing base (8786206) to head (b64dd0a).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #262   +/-   ##
=======================================
  Coverage   99.78%   99.78%           
=======================================
  Files          11       11           
  Lines         461      461           
  Branches       17       17           
=======================================
  Hits          460      460           
  Partials        1        1           

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[edx-requirements-bot]

Closing obsolete PR.