Bump redis from 4.5.3 to 4.5.4 in /docker/threatconnect-tcex (#14012)

Bumps [redis](https://github.com/redis/redis-py) from 4.5.3 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@v4.5.3...v4.5.4)

---
updated-dependencies:
- dependency-name: redis
  dependency-type: indirect
...

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