Add github actions to Dependabot updates (#494)

Update dependencies

Author: robinraju

.github/dependabot.yml

@@ -8,3 +8,8 @@ updates:
     # Check the npm registry for updates every day (weekdays)
     schedule:
       interval: "weekly"
+  # Enable version updates for github actions   
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"