CI: use -u (unbuffered) option to python
CI: use -u (unbuffered) option to python

for generate-srcinfo.  It prints out as it parses each PKGBUILD, but
that's never seen while the job is running.

InitialForce/MINGW-packages,Ede123/MINGW-packages,Alexpux/MINGW-packages,oroppas/MINGW-packages,Ede123/MINGW-packages,oscarfv/MINGW-packages,JPeterMugaas/MINGW-packages,stahta01/MINGW-packages,JPeterMugaas/MINGW-packages,fabiangreffrath/MINGW-packages,jtanx/MINGW-packages,jtanx/MINGW-packages,InitialForce/MINGW-packages,lhmouse/MINGW-packages,lhmouse/MINGW-packages,Chocobo1/MINGW-packages,oroppas/MINGW-packages,Alexpux/MINGW-packages,JPeterMugaas/MINGW-packages,oscarfv/MINGW-packages,jtanx/MINGW-packages,jtanx/MINGW-packages,stahta01/MINGW-packages,JPeterMugaas/MINGW-packages,Alexpux/MINGW-packages,stahta01/MINGW-packages,fabiangreffrath/MINGW-packages,lhmouse/MINGW-packages,Alexpux/MINGW-packages,JPeterMugaas/MINGW-packages,lhmouse/MINGW-packages,oscarfv/MINGW-packages,lhmouse/MINGW-packages,Ede123/MINGW-packages,oscarfv/MINGW-packages,InitialForce/MINGW-packages,JPeterMugaas/MINGW-packages,Chocobo1/MINGW-packages,Chocobo1/MINGW-packages,Ede123/MINGW-packages,fabiangreffrath/MINGW-packages,Alexpux/MINGW-packages,fabiangreffrath/MINGW-packages,fabiangreffrath/MINGW-packages,stahta01/MINGW-packages,oroppas/MINGW-packages,oroppas/MINGW-packages,oscarfv/MINGW-packages,oroppas/MINGW-packages,stahta01/MINGW-packages,fabiangreffrath/MINGW-packages,stahta01/MINGW-packages,lhmouse/MINGW-packages,oroppas/MINGW-packages,oscarfv/MINGW-packages,Alexpux/MINGW-packages