chore: bump redis from 5.0.1 to 7.3.0

Bumps [redis](https://github.com/redis/redis-py) from 5.0.1 to 7.3.0.
- [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/v5.0.1...v7.3.0)

---
updated-dependencies:
- dependency-name: redis
  dependency-version: 7.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

backend/requirements.txt

@@ -17,7 +17,7 @@ bcrypt==4.1.1
 pyjwt==2.8.0
 
 # Redis Cache
-redis==5.0.1
+redis==7.3.0
 hiredis==3.3.0
 
 # AWS S3 for File Storage