Build(deps): Bump redis from 4.2.5 to 4.3.1 (#13373)

Bumps [redis](https://github.com/redis/redis-rb) from 4.2.5 to 4.3.1.
- [Release notes](https://github.com/redis/redis-rb/releases)
- [Changelog](https://github.com/redis/redis-rb/blob/master/CHANGELOG.md)
- [Commits](https://github.com/redis/redis-rb/compare/v4.2.5...v4.3.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -337,7 +337,7 @@ GEM
       msgpack (>= 0.4.3)
       optimist (>= 3.0.0)
     rchardet (1.8.0)
-    redis (4.2.5)
+    redis (4.3.1)
     redis-namespace (1.8.1)
       redis (>= 3.0.4)
     regexp_parser (2.1.1)