fix: ignore some new ty errors

Author: alexfikl

src/pycaputo/utils.py

@@ -917,7 +917,7 @@ def stringify(v: Any) -> str:
         if not isinstance(dc, dict):
             header_attrs.append(("class", type(dc).__name__))
         if "name" in fields:
-            header_attrs.append(("name", fields["name"]))
+            header_attrs.append(("name", fields["name"]))  # ty: ignore[invalid-argument-type]
         if not header_attrs:
             header_attrs.append(("attribute", "value"))
     else: