Revert "ci: Disable pytest-xdist on cygwin"
Revert "ci: Disable pytest-xdist on cygwin"

This reverts commit dce60c8f58798e0457a9bb24198adb039a0e6fdd.

jpakkane/meson,jpakkane/meson,mesonbuild/meson,QuLogic/meson,mesonbuild/meson,pexip/meson,QuLogic/meson,QuLogic/meson,mesonbuild/meson,jpakkane/meson,mesonbuild/meson,pexip/meson,QuLogic/meson,pexip/meson,pexip/meson,jpakkane/meson,mesonbuild/meson,jpakkane/meson,pexip/meson,pexip/meson,jpakkane/meson,mesonbuild/meson,jpakkane/meson,pexip/meson,pexip/meson,pexip/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,QuLogic/meson,QuLogic/meson,mesonbuild/meson,mesonbuild/meson,QuLogic/meson,QuLogic/meson,QuLogic/meson,jpakkane/meson,mesonbuild/meson