build(deps): bump redis-client from 0.14.1 to 0.15.0

Bumps [redis-client](https://github.com/redis-rb/redis-client) from 0.14.1 to 0.15.0.
- [Changelog](https://github.com/redis-rb/redis-client/blob/master/CHANGELOG.md)
- [Commits](redis-rb/redis-client@v0.14.1...v0.15.0)

---
updated-dependencies:
- dependency-name: redis-client
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -242,7 +242,7 @@ GEM
     rake (13.0.6)
     redis (5.0.6)
       redis-client (>= 0.9.0)
-    redis-client (0.14.1)
+    redis-client (0.15.0)
       connection_pool
     redis-namespace (1.11.0)
       redis (>= 4)