chore: Upgrade Python requirements

[edx-requirements-bot]

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

Deleted obsolete pull_requests:
#391

[edx-requirements-bot]

List of packages in the PR without any issue.

• build changes from 1.4.2 to 1.5.0
• cachetools changes from 7.0.5 to 7.1.1
• certifi changes from 2026.2.25 to 2026.4.22
• chardet changes from 7.4.0.post2 to 7.4.3
• click changes from 8.3.2 to 8.3.3
• django changes from 5.2.13 to 5.2.14
• edx-lint changes from 6.0.0 to 6.1.0
• filelock changes from 3.25.2 to 3.29.0
• idna changes from 3.11 to 3.13
• lxml[html-clean] changes from 6.0.2 to 6.1.0
• markdown-it-py changes from 4.0.0 to 4.1.0
• more-itertools changes from 11.0.1 to 11.0.2
• nh3 changes from 0.3.4 to 0.3.5
• packaging changes from 26.0 to 26.2
• pip changes from 26.0.1 to 26.1.1
• platformdirs changes from 4.9.4 to 4.9.6
• pytest changes from 9.0.2 to 9.0.3
• python-discovery changes from 1.2.1 to 1.3.0
• tox changes from 4.52.0 to 4.53.1
• tzdata changes from 2026.1 to 2026.2
• virtualenv changes from 21.2.0 to 21.3.1
• wcwidth changes from 0.6.0 to 0.7.0
• wheel changes from 0.46.3 to 0.47.0

[edx-requirements-bot]

These Packages need manual review..

• [MAJOR] cryptography changes from 46.0.6 to 48.0.0
• [MAJOR] rich changes from 14.3.3 to 15.0.0