fix: formatting issues in docstrings (#32265)

Ensures proper reStructuredText formatting by adding the required blank
line before closing docstring quotes, which resolves the "Block quote
ends without a blank line; unexpected unindent" warning.

libs/partners/openai/langchain_openai/embeddings/base.py

@@ -157,6 +157,7 @@ class OpenAIEmbeddings(BaseModel, Embeddings):
         .. code-block:: python
 
             [-0.009100092574954033, 0.005071679595857859, -0.0029193938244134188]
+
     """
 
     client: Any = Field(default=None, exclude=True)  #: :meta private: