CI: upload to GCP

.github/workflows/workflow.yml

@@ -49,6 +49,10 @@ jobs:
     strategy:
       matrix: ${{ fromJSON(needs.Prepare-Workload.outputs.matrix) }}
 
+    permissions:
+      contents: 'read'
+      id-token: write
+
     steps:
       - uses: actions/checkout@v3
       - uses: actions/cache@v3
@@ -120,6 +124,29 @@ jobs:
           path: |
             build/**/*-result.json
 
+      - id: gcp-auth
+        name: GCP Authentcation
+        uses: google-github-actions/auth@v1
+        with:
+          service_account: ${{ secrets.GCP_SA }}
+          workload_identity_provider: ${{ secrets.GCP_WORKLOAD_IDENTITY_PROVIDER }}
+          cleanup_credentials: true
+          create_credentials_file: true
+          export_environment_variables: false
+
+      - name: Set up Cloud SDK
+        uses: google-github-actions/setup-gcloud@v1
+        env:
+          GOOGLE_GHA_CREDS_PATH: ${{ steps.gcp-auth.outputs.credentials_file_path }}
+        with:
+          version: '>= 363.0.0'
+
+      - name: Upload artifacts to GCP
+        run: |
+          gsutil -m rsync -r build/ gs://zephyr-samples-builder/zephyr/$ZEPHYR_VERSION 
+
+
+
   Print-status:
     needs: Build
     runs-on: ubuntu-latest