stubsabot: find_first_release_with_py_typed() doesn't work when only the latest release has py.typed

[Akuli]

typeshed/scripts/stubsabot.py

Lines 173 to 180 in da9366d

	async def find_first_release_with_py_typed(pypi_info: PypiInfo, *, session: aiohttp.ClientSession) -> PypiReleaseDownload | None:
	release_iter = pypi_info.releases_in_descending_order()
	# If the latest release is not py.typed, assume none are.
	if not (await release_contains_py_typed(release := next(release_iter), session=session)):
	return None
	first_release_with_py_typed: PypiReleaseDownload | None = None
	while await release_contains_py_typed(release := next(release_iter), session=session):

This function returns None if the latest release has py.typed and other releases don't. This is because the first next(release_iter) consumes the first release and essentially hides it from the rest of this function.

Broken in #9754

[AlexWaygood]

cc. @Avasam