chore: Upgrade Python requirements

[edx-requirements-bot]

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

Deleted obsolete pull_requests:
#398

[edx-requirements-bot]

List of packages in the PR without any issue.

• cachetools changes from 6.2.2 to 6.2.3
• coverage[toml] changes from 7.12.0 to 7.13.0
• librt changes from 0.6.3 to 0.7.3
• pip changes from 25.2 to 25.3
• platformdirs changes from 4.5.0 to 4.5.1
• pytest changes from 9.0.1 to 9.0.2
• sentry-sdk[flask] changes from 2.46.0 to 2.47.0
• tzdata changes from 2025.2 to 2025.3
• urllib3 changes from 2.5.0 to 2.6.2

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.84%. Comparing base (08989f2) to head (4517264).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #399   +/-   ##
=======================================
  Coverage   89.84%   89.84%           
=======================================
  Files          38       38           
  Lines        3103     3103           
  Branches      239      239           
=======================================
  Hits         2788     2788           
  Misses        281      281           
  Partials       34       34           

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