fix(langchain): deployment version in model name

Author: hassiebp

langfuse/langchain/utils.py

@@ -58,7 +58,11 @@ def _extract_model_name(
         deployment_version = None
         if serialized.get("kwargs").get("deployment_name"):
             deployment_name = serialized.get("kwargs").get("deployment_name")
-        return deployment_name + "-" + deployment_version
+        return (
+            deployment_name + "-" + deployment_version
+            if deployment_version not in deployment_name
+            else deployment_name
+        )
 
     # Third, for some models, we are unable to extract the model by a path in an object. Langfuse provides us with a string representation of the model pbjects
     # We use regex to extract the model from the repr string