docs(api): improve app endpoint deprecation description

openapi.yaml

@@ -1329,8 +1329,8 @@ paths:
     post:
       tags:
         - Applications
-      summary: 'Create (Docker Compose) (Deprecated)'
-      description: 'Create new application based on a docker-compose file (without git).'
+      summary: 'Create (Docker Compose)'
+      description: 'Deprecated: Use POST /api/v1/services instead.'
       operationId: create-dockercompose-application
       requestBody:
         description: 'Application object that needs to be created.'