Bump redis from 4.5.1 to 4.5.4 in /api (#1083)

Bumps [redis](https://github.com/redis/redis-py) from 4.5.1 to 4.5.4.
- [Release notes](https://github.com/redis/redis-py/releases)
- [Changelog](https://github.com/redis/redis-py/blob/master/CHANGES)
- [Commits](redis/redis-py@v4.5.1...v4.5.4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jeffrey (Dongkyu) Kim <vkehfdl1@gmail.com>

Author: dependabot[bot]

api/requirements.txt

@@ -6,6 +6,6 @@ quart-cors
 Werkzeug
 quart-uploads
 uvicorn
-redis==4.5.1
+redis==4.5.4
 celery==5.2.7
 flower==1.2.0