[skip ci] workflow: add Google Index Submission workflow

This commit introduces a new workflow for submitting the index to Google using the robingenz/action-google-indexing action. The workflow is triggered manually via workflow_dispatch.

Signed-off-by: Chiho Sin <[email protected]>

Author: chihosin

.github/workflows/google.yml

@@ -0,0 +1,16 @@
+name: Google Index Submission
+
+on:
+  # schedule:
+  #     - cron: 0 0,12 * * *
+  workflow_dispatch:
+
+jobs:
+  indexnow:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Submit Index to Google
+        uses: robingenz/[email protected]
+        with:
+          siteUrl: docs.fobestudio.com
+          gcpServiceAccountKey: ${{ secrets.GCP_SA_KEY }}