chore: use dependabot for github actions

Author: edosrecki

.github/dependabot.yml

@@ -1,4 +1,3 @@
-# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
 version: 2
 updates:
   - package-ecosystem: "npm"
@@ -9,3 +8,11 @@ updates:
       - "edosrecki"
     reviewers:
       - "edosrecki"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    assignees:
+      - "edosrecki"
+    reviewers:
+      - "edosrecki"