chore: update Dependabot configuration to include GitHub Actions ecosystem

Author: KristjanESPERANTO

.github/dependabot.yaml

@@ -1,11 +1,11 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for all configuration options:
-# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
-
 version: 2
 updates:
-  - package-ecosystem: "npm" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: monthly
+
+  - package-ecosystem: npm
+    directory: /
     schedule:
-      interval: "monthly"
+      interval: monthly