chore: Upgrade Python requirements

[edx-requirements-bot]

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

Deleted obsolete pull_requests:
#193

[edx-requirements-bot]

List of packages in the PR without any issue.

• coverage[toml] changes from 7.7.0 to 7.8.0
• lxml[html-clean] changes from 5.3.1 to 5.3.2
• pycodestyle changes from 2.12.1 to 2.13.0
• pytest-cov changes from 6.0.0 to 6.1.1
• pytz changes from 2025.1 to 2025.2
• tox changes from 4.24.2 to 4.25.0
• virtualenv changes from 20.29.3 to 20.30.0

[edx-requirements-bot]

These Packages need manual review..

• [MAJOR] setuptools changes from 77.0.3 to 78.1.0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.78%. Comparing base (45be7d0) to head (bd8edcc).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #195   +/-   ##
=======================================
  Coverage   99.78%   99.78%           
=======================================
  Files          11       11           
  Lines         461      461           
  Branches       17       17           
=======================================
  Hits          460      460           
  Partials        1        1           

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