fix validation

Author: giancarloromeo

services/api-server/src/simcore_service_api_server/services/director_v2.py

@@ -187,7 +187,7 @@ async def get_computation_logs(
         response.raise_for_status()
 
         log_links: list[LogLink] = []
-        for r in TypeAdapter(list[TaskLogFileGet]).validate_python(
+        for r in TypeAdapter(list[TaskLogFileGet]).validate_json(
             response.text or "[]"
         ):
             if r.download_link: