setup-gcloud 318.0.0

Refs https://til.simonwillison.net/googlecloud/gcloud-error-workaround

.github/workflows/publish.yml

@@ -93,7 +93,7 @@ jobs:
     - name: Set up Cloud Run
       uses: google-github-actions/setup-gcloud@v0
       with:
-        version: '275.0.0'
+        version: '318.0.0'
         service_account_email: ${{ secrets.GCP_SA_EMAIL }}
         service_account_key: ${{ secrets.GCP_SA_KEY }}
     - name: Deploy stable-docs.datasette.io to Cloud Run