fix(github-etl): Fix workload identity provider

Author: dklawren

.github/workflows/deploy.yml

@@ -26,7 +26,7 @@ jobs:
         with:
           token_format: "access_token"
           service_account: artifact-writer@${{ env.GCP_PROJECT_ID }}.iam.gserviceaccount.com
-          workload_identity_provider: ${{ vars.GCPV2_WORKLOAD_IDENTITY_POOL_PROJECT_NUMBER }}
+          workload_identity_provider: ${{ vars.GCPV2_GITHUB_WORKLOAD_IDENTITY_PROVIDER }}
       - name: Log in to the container registry
         uses: docker/login-action@v2
         with: