Update name for credentials

If the name of the credentials matches the name of the ACA app authentication fails (with a very generic error message). The credentials need to have a different name.

Author: GeekTrainer

articles/container-apps/github-actions.md

@@ -150,7 +150,7 @@ The GitHub workflow requires a secret named `AZURE_CREDENTIALS` to authenticate
 
     ```azurecli
     az ad sp create-for-rbac \
-      --name my-container-app \
+      --name my-app-credentials \
       --role contributor \
       --scopes /subscriptions/<SUBSCRIPTION_ID>/resourceGroups/my-container-app-rg \
       --sdk-auth \