Updates electron-windows-installer to v1.2.4
Updates electron-windows-installer to v1.2.4

rafael-neri/whatsapp-webapp,Aluxian/Messenger-for-Desktop,Hadisaeed/test-build,rafael-neri/whatsapp-webapp,Aluxian/Facebook-Messenger-Desktop,Aluxian/Messenger-for-Desktop,Aluxian/Messenger-for-Desktop,Aluxian/Facebook-Messenger-Desktop,Hadisaeed/test-build,Hadisaeed/test-build,rafael-neri/whatsapp-webapp,Aluxian/Facebook-Messenger-Desktop