Bump redis from 5.3.0 to 5.4.0

Bumps [redis](https://github.com/redis/redis-rb) from 5.3.0 to 5.4.0.
- [Changelog](https://github.com/redis/redis-rb/blob/master/CHANGELOG.md)
- [Commits](redis/redis-rb@v5.3.0...v5.4.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -321,7 +321,7 @@ GEM
     rake (13.2.1)
     rdoc (6.10.0)
       psych (>= 4.0.0)
-    redis (5.3.0)
+    redis (5.4.0)
       redis-client (>= 0.22.0)
     redis-client (0.23.2)
       connection_pool