Bump connection_pool from 2.5.4 to 2.5.5

Bumps [connection_pool](https://github.com/mperham/connection_pool) from 2.5.4 to 2.5.5.
- [Changelog](https://github.com/mperham/connection_pool/blob/main/Changes.md)
- [Commits](mperham/connection_pool@v2.5.4...v2.5.5)

---
updated-dependencies:
- dependency-name: connection_pool
  dependency-version: 2.5.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -123,7 +123,7 @@ GEM
       logger (~> 1.5)
     coderay (1.1.3)
     concurrent-ruby (1.3.5)
-    connection_pool (2.5.4)
+    connection_pool (2.5.5)
     coveralls (0.7.1)
       multi_json (~> 1.3)
       rest-client