Bump redis-client from 0.26.0 to 0.26.1 in /builder (#2795)

Bumps [redis-client](https://github.com/redis-rb/redis-client) from 0.26.0 to 0.26.1.
- [Changelog](https://github.com/redis-rb/redis-client/blob/master/CHANGELOG.md)
- [Commits](redis-rb/redis-client@v0.26.0...v0.26.1)

---
updated-dependencies:
- dependency-name: redis-client
  dependency-version: 0.26.1
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

builder/Gemfile.lock

@@ -246,7 +246,7 @@ GEM
       erb
       psych (>= 4.0.0)
     redcarpet (3.6.1)
-    redis-client (0.26.0)
+    redis-client (0.26.1)
       connection_pool
     reline (0.6.2)
       io-console (~> 0.5)