argh doesn't understand Sequence[T] annotation

[jennifgcrl]

Summary

As the title says. argh doesn't understand typing.Sequence annotations.

To Reproduce

This doesn't work:

import argh
from typing import Sequence

def foo(x: Sequence[str]): ...

argh.dispatch_commands([foo])

but this works:

import argh

def foo(x: list[str]): ...

argh.dispatch_commands([foo])

Expected behavior

Both should have the same behavior

[jennifgcrl]

Oh maybe this is a dupe of #107