chore: Upgrade Python requirements

[edx-requirements-bot]

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

Deleted obsolete pull_requests:
#311

[edx-requirements-bot]

List of packages in the PR without any issue.

• black changes from 26.3.1 to 26.5.1
• build changes from 1.4.2 to 1.5.0
• cachetools changes from 7.0.5 to 7.1.4
• certifi changes from 2026.2.25 to 2026.6.17
• click changes from 8.3.2 to 8.4.2
• coverage[toml] changes from 7.13.5 to 7.14.3
• distlib changes from 0.4.0 to 0.4.3
• django changes from 5.2.13 to 5.2.15
• docutils changes from 0.22.4 to 0.23
• filelock changes from 3.25.2 to 3.29.4
• idna changes from 3.11 to 3.18
• jaraco-functools changes from 4.4.0 to 4.5.0
• lxml changes from 6.0.2 to 6.1.1
• markdown-it-py changes from 4.0.0 to 4.2.0
• more-itertools changes from 11.0.1 to 11.1.0
• nh3 changes from 0.3.4 to 0.3.6
• packaging changes from 26.0 to 26.2
• pathspec changes from 1.0.4 to 1.1.1
• pip changes from 26.0.1 to 26.1.2
• platformdirs changes from 4.9.4 to 4.10.0
• pyproject-api changes from 1.10.0 to 1.10.1
• pytest changes from 9.0.2 to 9.1.1
• python-discovery changes from 1.2.1 to 1.4.2
• requests changes from 2.33.1 to 2.34.2
• tox changes from 4.52.0 to 4.56.1
• urllib3 changes from 2.6.3 to 2.7.0
• virtualenv changes from 21.2.0 to 21.5.1
• wheel changes from 0.46.3 to 0.47.0
• xmlformatter changes from 0.2.8 to 0.2.9

[edx-requirements-bot]

These Packages need manual review..

• [MAJOR] cryptography changes from 46.0.6 to 49.0.0
• [MAJOR] readme-renderer changes from 44.0 to 45.0
• [MAJOR] rich changes from 14.3.3 to 15.0.0