add auth test

Author: alistairewj

.github/workflows/test_bq_auth.yml

@@ -24,6 +24,13 @@ jobs:
         uses: 'google-github-actions/setup-gcloud@v2'
         with:
           version: '>= 363.0.0'
+        
+      - name: Test gcloud auth
+        run: |
+            echo "Testing gcloud auth"
+            gcloud auth list
+            gcloud config list
+            gcloud projects list
 
       - name: Test making a table with bigquery
         run: |