Adjust dependabot settings

Author: phit

.github/dependabot.yml

@@ -3,4 +3,15 @@ updates:
   - package-ecosystem: "composer"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: weekly
+    groups:
+      patch-updates:
+        update-types: ["patch"]
+      minor-updates:
+        update-types: ["minor"]
+    open-pull-requests-limit: 5
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 3