Build(deps): Bump redis from 5.0.3 to 5.0.4 (#297)

Bumps [redis](https://github.com/redis/redis-py) from 5.0.3 to 5.0.4.
- [Release notes](https://github.com/redis/redis-py/releases)
- [Changelog](https://github.com/redis/redis-py/blob/master/CHANGES)
- [Commits](redis/redis-py@v5.0.3...v5.0.4)

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

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