Don't ignore globs when skipping files for update (#296)

The logic in `_remove_paths` checks if the path is a `str` or `Path`
object and only if it is a `str` does it assume it contains a glob.
Unfortunately, the `_get_skip_paths` method was wrapping all returned
values in `Path` objects so globs were being ignored.

Co-authored-by: Sambhav Kothari <sambhavs.email@gmail.com>