chore(deps): bump redis from 4.5.5 to 4.6.0 in /metrics-exporter

Bumps [redis](https://github.com/redis/redis-py) from 4.5.5 to 4.6.0.
- [Release notes](https://github.com/redis/redis-py/releases)
- [Changelog](https://github.com/redis/redis-py/blob/master/CHANGES)
- [Commits](redis/redis-py@v4.5.5...v4.6.0)

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

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

metrics-exporter/requirements.txt

@@ -1,4 +1,4 @@
 prometheus-client==0.17.1
 structlog==23.1.0
 celery==5.2.7
-redis==4.5.5
+redis==4.6.0