fix: simplify external error message per review feedback

Co-Authored-By: suisui.xia <suisui.xia@airbyte.io>

Author: devin-ai-integration[bot]

airbyte_cdk/entrypoint.py

@@ -348,7 +348,7 @@ def airbyte_message_to_string(airbyte_message: AirbyteMessage) -> str:
                 raise AirbyteTracedException(
                     internal_message=f"Failed to serialize AirbyteMessage to JSON: `{json_exception}`",
                     failure_type=FailureType.system_error,
-                    message=f"A record could not be serialized to JSON: `{json_exception}`. The sync will be stopped to prevent data corruption. Please verify the source is returning valid data types.",
+                    message="A record returned from the API failed to be serialized to JSON.",
                 ) from json_exception
 
     @classmethod

unit_tests/test_entrypoint.py

@@ -873,5 +873,5 @@ def test_given_non_json_serializable_type_then_raise_traced_exception(
     mocker.patch.object(MockSource, "read_catalog", return_value={})
     mocker.patch.object(MockSource, "read", return_value=[record])
 
-    with pytest.raises(AirbyteTracedException, match="could not be serialized to JSON"):
+    with pytest.raises(AirbyteTracedException, match="failed to be serialized to JSON"):
         list(entrypoint.run(parsed_args))