Bump redis from 3.0.0 to 4.3.4

Bumps [redis](https://github.com/redis/redis-py) from 3.0.0 to 4.3.4.
- [Release notes](https://github.com/redis/redis-py/releases)
- [Changelog](https://github.com/redis/redis-py/blob/master/CHANGES)
- [Commits](https://github.com/redis/redis-py/compare/3.0.0...v4.3.4)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -9,4 +9,4 @@ psycopg2-binary==2.9.3
 
 pycountry==22.3.5
 
-redis==3.0.0
+redis==4.3.4