chore: Upgrade Python requirements

[edx-requirements-bot]

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

Deleted obsolete pull_requests:
#277

[edx-requirements-bot]

List of packages in the PR without any issue.

• build changes from 1.4.3 to 1.5.0
• cachetools changes from 7.0.6 to 7.1.1
• coverage[toml] changes from 7.13.5 to 7.14.0
• django changes from 5.2.13 to 5.2.14
• edx-lint changes from 6.0.0 to 6.1.0
• fastavro changes from 1.12.1 to 1.12.2
• idna changes from 3.13 to 3.14
• markdown-it-py changes from 4.0.0 to 4.2.0
• nh3 changes from 0.3.4 to 0.3.5
• packaging changes from 26.1 to 26.2
• pip changes from 26.0.1 to 26.1.1
• python-discovery changes from 1.2.2 to 1.3.0
• pytz changes from 2026.1.post1 to 2026.2
• ruff changes from 0.15.11 to 0.15.12
• tomlkit changes from 0.14.0 to 0.15.0
• tox changes from 4.53.0 to 4.53.1
• urllib3 changes from 2.6.3 to 2.7.0
• virtualenv changes from 21.2.4 to 21.3.1

[edx-requirements-bot]

These Packages need manual review..

• [MAJOR] cryptography changes from 46.0.7 to 48.0.0