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

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

libs/community/langchain_community/embeddings/minimax.py

@@ -110,7 +110,7 @@ class MiniMaxEmbeddings(BaseModel, Embeddings):
 
         # HTTP headers for authorization
         headers = {
-            "Authorization": f"Bearer {self.minimax_api_key.get_secret_value()}",
+            "Authorization": f"Bearer {self.minimax_api_key.get_secret_value()}",  # type: ignore[union-attr]
             "Content-Type": "application/json",
         }