Add type hints for tomllib (#7432)

stdlib/tomllib.pyi

@@ -0,0 +1,8 @@
+from _typeshed import SupportsRead
+from collections.abc import Callable
+from typing import Any
+
+class TOMLDecodeError(ValueError): ...
+
+def load(__fp: SupportsRead[bytes], *, parse_float: Callable[[str], Any] = ...) -> dict[str, Any]: ...
+def loads(__s: str, *, parse_float: Callable[[str], Any] = ...) -> dict[str, Any]: ...