fix bad code

Author: SentienceDEV

sentience/agent_runtime.py

@@ -342,7 +342,7 @@ def assert_done(
         Returns:
             True if task is complete (assertion passed), False otherwise
         """
-        ok = self.assertTrue(predicate, label=label, required=True)
+        ok = self.assert_(predicate, label=label, required=True)
         if ok:
             self._task_done = True
             self._task_done_label = label