Bump config from 5.0.0 to 5.1.0

Bumps [config](https://github.com/rubyconfig/config) from 5.0.0 to 5.1.0.
- [Release notes](https://github.com/rubyconfig/config/releases)
- [Changelog](https://github.com/rubyconfig/config/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubyconfig/config/commits)

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

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

Gemfile.lock

@@ -23,7 +23,7 @@ GEM
     base64 (0.2.0)
     bigdecimal (3.1.4)
     concurrent-ruby (1.2.2)
-    config (5.0.0)
+    config (5.1.0)
       deep_merge (~> 1.2, >= 1.2.1)
       dry-validation (~> 1.0, >= 1.0.0)
     connection_pool (2.4.1)