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.

• coverage[toml] changes from 7.13.4 to 7.13.5
• pytest-cov changes from 7.0.0 to 7.1.0
• sentry-sdk[flask] changes from 2.54.0 to 2.55.0
• sphinx changes from 9.0.4 to 9.1.0
• types-cachetools changes from 6.2.0.20251022 to 6.2.0.20260317

[edx-requirements-bot]

These Packages need manual review..

• [MAJOR] attrs changes from 25.4.0 to 26.1.0
• [MAJOR] code-annotations changes from 2.3.2 to 3.0.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.84%. Comparing base (5efad0b) to head (b8f43f7).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #413   +/-   ##
=======================================
  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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