Updated dependabot config

Author: divineniiquaye

.github/dependabot.yml

@@ -1,7 +1,16 @@
 version: 2
 updates:
-- package-ecosystem: composer
-  directory: "/"
-  schedule:
-    interval: daily
-  versioning-strategy: "increase-if-necessary"
+  # Maintain dependencies for GitHub Actions.
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+        interval: "daily"
+    # Too noisy. See https://github.community/t/increase-if-necessary-for-github-actions-in-dependabot/179581
+    open-pull-requests-limit: 0
+
+  # Maintain dependencies for Composer
+  - package-ecosystem: "composer"
+    directory: "/"
+    schedule:
+        interval: "daily"
+    versioning-strategy: increase-if-necessary