Change return type of method get_latest_versions to List[ModelVersion] (

#5156)

Signed-off-by: Pavel Bezglasny <pavelb23@gmail.com>

mlflow/tracking/client.py

@@ -1980,7 +1980,7 @@ def print_model_info(rm):
         """
         return self._get_registry_client().get_registered_model(name)
 
-    def get_latest_versions(self, name: str, stages: List[str] = None) -> ModelVersion:
+    def get_latest_versions(self, name: str, stages: List[str] = None) -> List[ModelVersion]:
         """
         Latest version models for each requests stage. If no ``stages`` provided, returns the
         latest version for each stage.