Bump redis from 4.5.1 to 4.5.3

Bumps [redis](https://github.com/redis/redis-py) from 4.5.1 to 4.5.3.
- [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/v4.5.1...v4.5.3)

---
updated-dependencies:
- dependency-name: redis
  dependency-type: direct:production
...

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

requirements.txt

@@ -24,4 +24,4 @@ urllib3==1.26.14
 WeRoBot==1.13.1
 Whoosh==2.7.4
 user-agents==2.2.0
-redis==4.5.1
+redis==4.5.3