chore: improve push_tx log

Author: glevco

hathor/transaction/resources/push_tx.py

@@ -101,9 +101,9 @@ def handle_push_tx(self, params: dict[str, Any], client_addr: str) -> dict[str,
             self.manager.push_tx(tx, allow_non_standard_script=self.allow_non_standard_script,
                                  max_output_script_size=self.max_output_script_size)
         except (InvalidNewTransaction, TxValidationError) as e:
-            self.log.warn('push tx rejected', exc_info=True)
             success = False
             message = str(e)
+            self.log.warn('push tx rejected', reason=message)
         data = {'success': success, 'message': message}
         if success:
             data['tx'] = tx.to_json()