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.

• certifi changes from 2025.7.9 to 2025.7.14
• distlib changes from 0.3.9 to 0.4.0
• hypothesis changes from 6.135.29 to 6.136.1
• mypy changes from 1.16.1 to 1.17.0
• nh3 changes from 0.2.21 to 0.3.0
• tox changes from 4.27.0 to 4.28.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.00%. Comparing base (521e2c4) to head (15493e6).
⚠️ Report is 21 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #392      +/-   ##
==========================================
+ Coverage   93.93%   94.00%   +0.06%     
==========================================
  Files          31       31              
  Lines        3036     3036              
  Branches      191      191              
==========================================
+ Hits         2852     2854       +2     
+ Misses        157      156       -1     
+ Partials       27       26       -1     

Flag	Coverage Δ
unittests	94.00% <ø> (+0.06%)	⬆️

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