only report failures in summaries in non streaming server calls

Author: AlejandroEsquivel

guardrails/guard.py

@@ -1195,7 +1195,9 @@ def _single_server_call(self, *, payload: Dict[str, Any]) -> ValidationOutcome[O
             self.history.extend([Call.from_interface(call) for call in guard_history])
 
             validator_logs = self.history.last.iterations.last.validator_logs
-            validation_summaries = ValidationSummary.from_validator_logs(validator_logs)
+            validation_summaries = ValidationSummary.from_validator_logs_only_fails(
+                validator_logs
+            )
 
             # TODO: See if the below statement is still true
             # Our interfaces are too different for this to work right now.