address comments

Author: Panaetius

components/renku_data_services/utils/sqlalchemy.py

@@ -22,4 +22,4 @@ def process_result_value(self, value: str | None, dialect: Dialect) -> ULID | No
         """Transform string from database into ULID."""
         if value is None:
             return None
-        return cast(ULID, ULID.from_str(value))
+        return cast(ULID, ULID.from_str(value))  # cast because mypy doesn't understand ULID type annotations