Bump online_migrations in the gem-dependencies group

Bumps the gem-dependencies group with 1 update: [online_migrations](https://github.com/fatkodima/online_migrations).


Updates `online_migrations` from 0.19.1 to 0.19.2
- [Changelog](https://github.com/fatkodima/online_migrations/blob/master/CHANGELOG.md)
- [Commits](fatkodima/online_migrations@v0.19.1...v0.19.2)

---
updated-dependencies:
- dependency-name: online_migrations
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: gem-dependencies
...

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

Gemfile.lock

@@ -372,7 +372,7 @@ GEM
     omniauth_openid_connect (0.8.0)
       omniauth (>= 1.9, < 3)
       openid_connect (~> 2.2)
-    online_migrations (0.19.1)
+    online_migrations (0.19.2)
       activerecord (>= 6.1)
     openid_connect (2.3.0)
       activemodel