formatting changes for value error update

Author: Bryannah Hernandez

src/sagemaker/serve/builder/transformers_builder.py

@@ -337,7 +337,9 @@ def _auto_detect_container(self):
                 self.instance_type,
             )
         else:
-            raise ValueError("Cannot detect and set image_uri. Please pass model or inference spec.")
+            raise ValueError(
+                "Cannot detect and set image_uri. Please pass model or inference spec."
+            )
 
     def _build_for_transformers(self):
         """Method that triggers model build