mark: fix typing for `@pytest.mark.xfail(raises=...)`
mark: fix typing for `@pytest.mark.xfail(raises=...)`

pytest-dev/pytest,The-Compiler/pytest,Akasurde/pytest,The-Compiler/pytest,markshao/pytest,nicoddemus/pytest,nicoddemus/pytest,RonnyPfannschmidt/pytest