Group dependency bumps for Vite Ruby gems

The `vite_ruby` and `vite_rails` gems depend on each other, and they
often have new versions released at the same time, so it would be
helpful to group their dependency bumps together.

Author: lfdebrux

.github/dependabot.yml

@@ -34,6 +34,10 @@ updates:
       sentry:
         patterns:
           - "sentry-*"
+      vite_ruby:
+        patterns:
+          - "vite_rails"
+          - "vite_ruby"
 
   # Maintain dependencies for npm
   - package-ecosystem: npm