chore: Upgrade Python requirements

[edx-requirements-bot]

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

Deleted obsolete pull_requests:
#390

[edx-requirements-bot]

List of packages in the PR without any issue.

• arrow changes from 1.3.0 to 1.4.0
• attrs changes from 25.3.0 to 25.4.0
• cachetools changes from 6.2.0 to 6.2.1
• charset-normalizer changes from 3.4.3 to 3.4.4
• coverage[toml] changes from 7.10.7 to 7.11.0
• cryptography changes from 46.0.2 to 46.0.3
• idna changes from 3.10 to 3.11
• iniconfig changes from 2.1.0 to 2.3.0
• nh3 changes from 0.3.0 to 0.3.1
• platformdirs changes from 4.4.0 to 4.5.0
• schema changes from 0.7.7 to 0.7.8
• sentry-sdk[flask] changes from 2.39.0 to 2.42.0

[edx-requirements-bot]

These Packages need manual review..

• [REMOVED] types-python-dateutil (2.9.0.20250822) removed from the requirements

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.84%. Comparing base (f16dedf) to head (97c0256).
⚠️ Report is 11 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #392   +/-   ##
=======================================
  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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