Bump channels-redis from 4.2.0 to 4.2.1 (#764)

Bumps [channels-redis](https://github.com/django/channels_redis) from 4.2.0 to 4.2.1.
- [Changelog](https://github.com/django/channels_redis/blob/main/CHANGELOG.txt)
- [Commits](django/channels_redis@4.2.0...4.2.1)

---
updated-dependencies:
- dependency-name: channels-redis
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -4,7 +4,7 @@ django-cors-headers==4.6.0
 redis==5.2.0
 sqlalchemy==2.0.36
 channels==4.2.0
-channels-redis==4.2.0
+channels-redis==4.2.1
 orjson==3.10.12
 simplejson==3.19.3
 psycopg2-binary