tabulate.tabulate should accept pd.DataFrame #16708

$ uv run mypy -c "import tabulate; import pandas as pd; tabulate.tabulate(pd.DataFrame({}))"
<string>:1: error: Argument 1 to "tabulate" has incompatible type "DataFrame"; expected "Mapping[Any, Iterable[Any]] | Iterable[Iterable[Any]]"  [arg-type]
<string>:1: note: Following member(s) of "DataFrame" have conflicts:
<string>:1: note:     Expected:
<string>:1: note:         def __iter__(self) -> Iterator[Iterable[Any]]
<string>:1: note:     Got:
<string>:1: note:         def __iter__(self) -> Iterator[Hashable]
Found 1 error in 1 file (checked 1 source file)