ci(github): group actions/* updates into single dependabot PR

Author: d3m1d0v

.github/dependabot.yml

@@ -17,6 +17,10 @@ updates:
       day: monday
     commit-message:
       prefix: "ci(github)"
+    groups:
+      github-actions:
+        patterns:
+          - "actions/*"
 
   # npm — root
   - package-ecosystem: npm