CI: Enable dependabot for GitHub Action Workflow (#1831)

Signed-off-by: Jiahao XU <[email protected]>

Author: NobodyXu

.github/dependabot.yml

@@ -2,6 +2,12 @@ version: 2
 
 # Only enable cargo, turn off npm from wasm example
 updates:
+  - package-ecosystem: "github-actions"
+    # Workflow files stored in the
+    # default location of `.github/workflows`
+    directory: "/"
+    schedule:
+      interval: "daily"
   - package-ecosystem: "cargo"
     directory: "/"
     schedule: