Bump shoulda-matchers from 6.2.0 to 6.3.0

Bumps [shoulda-matchers](https://github.com/thoughtbot/shoulda-matchers) from 6.2.0 to 6.3.0.
- [Release notes](https://github.com/thoughtbot/shoulda-matchers/releases)
- [Changelog](https://github.com/thoughtbot/shoulda-matchers/blob/main/CHANGELOG.md)
- [Commits](thoughtbot/shoulda-matchers@v6.2.0...v6.3.0)

---
updated-dependencies:
- dependency-name: shoulda-matchers
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -176,7 +176,7 @@ GEM
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
     coderay (1.1.3)
-    concurrent-ruby (1.3.3)
+    concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     coveralls (0.7.1)
       multi_json (~> 1.3)
@@ -524,7 +524,7 @@ GEM
       concurrent-ruby (~> 1.0, >= 1.0.2)
     shoulda-callback-matchers (1.1.4)
       activesupport (>= 3)
-    shoulda-matchers (6.2.0)
+    shoulda-matchers (6.3.0)
       activesupport (>= 5.2.0)
     sidekiq (7.3.0)
       concurrent-ruby (< 2)