setup.cfg: fix check-manifest ignore  [ci skip] (#6156)
setup.cfg: fix check-manifest ignore  [ci skip] (#6156)

setup.cfg: fix check-manifest ignore  [ci skip]
pytest-dev/pytest,alfredodeza/pytest,nicoddemus/pytest,markshao/pytest,Akasurde/pytest,nicoddemus/pytest,RonnyPfannschmidt/pytest,The-Compiler/pytest,The-Compiler/pytest