core[patch]: call RunnableConfigurableFields.model_rebuild() (#26118)

To fix a test in `langchain`

libs/core/langchain_core/runnables/configurable.py

@@ -18,6 +18,7 @@ from typing import (
     Union,
     cast,
 )
+from typing import Mapping as Mapping
 from weakref import WeakValueDictionary
 
 from pydantic import BaseModel, ConfigDict
@@ -453,6 +454,9 @@ class RunnableConfigurableFields(DynamicRunnable[Input, Output]):
             return (self.default, config)
 
 
+RunnableConfigurableFields.model_rebuild()
+
+
 # Before Python 3.11 native StrEnum is not available
 class StrEnum(str, enum.Enum):
     """String enum."""