Marking HPX MPI feature build errors on some platforms as cascade errors

Author: hkaiser

scripts/ci.feature.baseline.txt

@@ -149,6 +149,10 @@ gsoap = skip # gsoap does not offer stable public source downloads
 gtk:x64-windows-static=fail
 hpx:arm64-windows=fail
 hpx:x64-windows-static=fail
+hpx[mpi]:arm-uwp=cascade
+hpx[mpi]:x64-linux=cascade
+hpx[mpi]:x64-osx=cascade
+hpx[mpi]:x64-uwp=cascade
 hunspell:x64-windows-static-md=fail
 ideviceinstaller:x64-windows-static-md=fail
 idevicerestore:x64-linux=fail