Bump channels from 4.1.0 to 4.3.1 in /requirements

[dependabot]

Bumps channels from 4.1.0 to 4.3.1.

Changelog

Sourced from channels's changelog.

4.3.1 (2025-08-01)

• Fixed testing live server setup when test DB name was not set.

4.3.0 (2025-07-28)

• Updated asgiref dependency to v3.9+.

• Dropped support for EOL Python and Django versions. Python 3.9 is now the minimum supported version.

• Fixed compatibility of ChannelsLiveServerTestCase with Django 5.2.

• Fixed DB setup for spawned testing subprocess, typically on Windows and macOS.

See the Version 4.3.0 release notes <https://channels.readthedocs.io/en/latest/releases/4.3.0.html>_ for more details.

4.2.2 (2025-03-30)

• Added fallbacks for old valid channel/group name checks.

  These were renamed in 4.2.1 but (as internal methods) without deprecation. They are restored (and deprecated) here to allow updating channel layers using them.

4.2.1 (2025-03-29)

Channels 4.2.1 primarily updates the metadata for supported Python and Django versions.

• Added official support for Django 5.2 LTS.

• Added official support for Python 3.13.

• Added a warning for the length of the channel layer group names.

See also the Version 4.2.1 release notes <https://channels.readthedocs.io/en/latest/releases/4.2.1.html>_ in the docs.

4.2.0 (2024-11-15)

Channels 4.2 introduces a couple of major but backwards-compatible changes, including most notably enhanced async suppport and fixing

... (truncated)

Commits

• 95589a7 Version 4.3.1.
• 5038d69 Fix live server setup when test DB name not set.
• f17a8fe Bump browser-actions/setup-chrome from 1 to 2 (#2175)
• 2d64b3f Version 4.3.0.
• 253a654 Fixed 4.2.1 release notes file extension.
• 4aaefa9 Fixed DB setup for spawned testing subprocess.
• cd44771 Made ChannelsLiveServerTestCase compatible with Django 5.2.
• b72da7f Updated dependencies after asgiref v3.9. (#2168)
• 0efba8c Correct the place of the 'version switcher' in docs. (#2167)
• 8bf5c7d Update websocket.py: fix typo. (#2158)
• Additional commits viewable in compare view

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