Bump redis from 4.3.4 to 4.4.4 (#443)

Bumps [redis](https://github.com/redis/redis-py) from 4.3.4 to 4.4.4.
- [Release notes](https://github.com/redis/redis-py/releases)
- [Changelog](https://github.com/redis/redis-py/blob/master/CHANGES)
- [Commits](redis/redis-py@v4.3.4...v4.4.4)

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

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

requirements.txt

@@ -59,7 +59,7 @@ Flask-SQLAlchemy-Cache==0.1.5
 Flask-Migrate==2.7.0
 
 # Caching
-redis==4.3.4
+redis==4.4.4
 
 # Job Queue
 Flask-RQ2==18.3