Merge pull request mix1009#89 from veintin/main

bugfix: when async api fail, raise the right error message

Author: mix1009

Diff for: webuiapi/webuiapi.py

@@ -201,7 +201,7 @@ def _to_api_result(self, response):
 
     async def _to_api_result_async(self, response):
         if response.status != 200:
-            raise RuntimeError(response.status, await response.text)
+            raise RuntimeError(response.status, await response.text())
 
         r = await response.json()
         images = []