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/tests/integration_tests/document_loaders/test_astradb.py

@@ -167,5 +167,5 @@ class TestAstraDB:
             find_options={"limit": 30},
             extraction_function=lambda x: x["foo"],
         )
-        doc = await anext(loader.alazy_load())
+        doc = await anext(loader.alazy_load())  # type: ignore[name-defined]
         assert doc.page_content == "bar"

libs/community/tests/integration_tests/document_loaders/test_cassandra.py

@@ -14,7 +14,7 @@ CASSANDRA_TABLE = "docloader_test_table"
 
 
 @pytest.fixture(autouse=True, scope="session")
-def keyspace() -> str:
+def keyspace() -> str:  # type: ignore[misc]
     import cassio
     from cassandra.cluster import Cluster
     from cassio.config import check_resolve_session, resolve_keyspace