Change { } -> < > for consistency

Author: MikeDodaro

articles/spring-cloud/spring-cloud-howto-github-actions.md

@@ -22,7 +22,7 @@ az ad sp create-for-rbac --role contributor --scopes /subscriptions/<SUBSCRIPTIO
 ```
 To access to a specific resource group, you can reduce the scope:
 ```
-az ad sp create-for-rbac --role contributor --scopes /subscriptions/<SUBSCRIPTION_ID>/resourceGroups/{RESOURCE_GROUP} --sdk-auth
+az ad sp create-for-rbac --role contributor --scopes /subscriptions/<SUBSCRIPTION_ID>/resourceGroups/<RESOURCE_GROUP> --sdk-auth
 ```
 The command should output a JSON object:
 ```JSON