Bump config from 5.5.2 to 5.6.1

Bumps [config](https://github.com/rubyconfig/config) from 5.5.2 to 5.6.1.
- [Release notes](https://github.com/rubyconfig/config/releases)
- [Changelog](https://github.com/rubyconfig/config/blob/master/CHANGELOG.md)
- [Commits](rubyconfig/config@5.5.2...5.6.1)

---
updated-dependencies:
- dependency-name: config
  dependency-version: 5.6.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -174,7 +174,7 @@ GEM
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
     concurrent-ruby (1.3.5)
-    config (5.5.2)
+    config (5.6.1)
       deep_merge (~> 1.2, >= 1.2.1)
       ostruct
     connection_pool (2.5.3)
@@ -298,7 +298,7 @@ GEM
       racc (~> 1.4)
     notifications-ruby-client (6.2.0)
       jwt (>= 1.5, < 3)
-    ostruct (0.6.1)
+    ostruct (0.6.2)
     pagy (9.3.4)
     parallel (1.27.0)
     parser (3.3.8.0)