infra: add -p to mkdir in lint steps (#17013)

Previously, if this did not find a mypy cache then it wouldnt run

this makes it always run

adding mypy ignore comments with existing uncaught issues to unblock other prs

---------

Co-authored-by: Erick Friis <erick@langchain.dev>
Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>

libs/community/langchain_community/embeddings/mlflow.py

@@ -71,7 +71,8 @@ class MlflowEmbeddings(Embeddings, BaseModel):
         embeddings: List[List[float]] = []
         for txt in _chunk(texts, 20):
             resp = self._client.predict(
-                endpoint=self.endpoint, inputs={"input": txt, **params}
+                endpoint=self.endpoint,
+                inputs={"input": txt, **params},  # type: ignore[arg-type]
             )
             embeddings.extend(r["embedding"] for r in resp["data"])
         return embeddings