[upd] pypi: Bump redis from 5.0.3 to 5.0.4

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](https://github.com/redis/redis-py/compare/v5.0.3...v5.0.4)

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

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

requirements.txt

@@ -12,7 +12,7 @@ Brotli==1.1.0
 uvloop==0.19.0
 httpx-socks[asyncio]==0.7.7
 setproctitle==1.3.3
-redis==5.0.3
+redis==5.0.4
 markdown-it-py==3.0.0
 fasttext-predict==0.9.2.2
 pytomlpp==1.0.13