Repository.__init__ (possibly others) missing os.PathLike typing

[warriorstar-orion]

Support for PathLikes was added in #990. However, it doesn't appear the typing for some of the affected methods were updated. Repository.__init__ was the one I caught, but there may be more (which is why this isn't just a PR, I didn't want to make this one change and end up missing others).

pygit2/pygit2/repository.py

Lines 1523 to 1528 in 5b27dee

	class Repository(BaseRepository):
	def __init__(
	self,
	path: typing.Optional[str] = None,
	flags: RepositoryOpenFlag = RepositoryOpenFlag.DEFAULT,
	):