Bump connection_pool from 2.5.2 to 2.5.3 in /steep

Bumps [connection_pool](https://github.com/mperham/connection_pool) from 2.5.2 to 2.5.3.
- [Changelog](https://github.com/mperham/connection_pool/blob/main/Changes.md)
- [Commits](mperham/connection_pool@v2.5.2...v2.5.3)

---
updated-dependencies:
- dependency-name: connection_pool
  dependency-version: 2.5.3
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

steep/Gemfile.lock

@@ -19,7 +19,7 @@ GEM
     benchmark (0.4.0)
     bigdecimal (3.1.9)
     concurrent-ruby (1.3.5)
-    connection_pool (2.5.2)
+    connection_pool (2.5.3)
     csv (3.3.4)
     drb (2.2.1)
     ffi (1.17.2)