Bump redis from 5.2.0 to 5.2.1 (#774)

Bumps [redis](https://github.com/redis/redis-py) from 5.2.0 to 5.2.1.
- [Release notes](https://github.com/redis/redis-py/releases)
- [Changelog](https://github.com/redis/redis-py/blob/master/CHANGES)
- [Commits](redis/redis-py@v5.2.0...v5.2.1)

---
updated-dependencies:
- dependency-name: 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

@@ -1,7 +1,7 @@
 Click==8.1.7
 Django==4.2.17
 django-cors-headers==4.6.0
-redis==5.2.0
+redis==5.2.1
 sqlalchemy==2.0.36
 channels==4.2.0
 channels-redis==4.2.1