use the proper auth method with helm cli

Author: Pascal-Delange

.github/workflows/main.yml

@@ -45,8 +45,7 @@ jobs:
       - name: Login to artifact registry
         run: |
           cd kubernetes
-          gcloud auth activate-service-account ${{vars.SERVICE_ACCOUNT_NAME}} --key-file $GOOGLE_APPLICATION_CREDENTIALS
-          cat $GOOGLE_APPLICATION_CREDENTIALS | helm registry login -u  _json_key --password-stdin https://${{vars.ARTIFACT_REGISTRY_HOST_NAME}}
+          cat ${{ steps.auth.outputs.access_token }} | helm registry login -u oauth2accesstoken --password-stdin https://${{vars.ARTIFACT_REGISTRY_HOST_NAME}}
 
       - name: Prepare YQ
         uses: dcarbone/[email protected]