Actions improvements

Created by: Xottab-DUTY

TODO:

• Output binaries for macOS builds
• macOS multiarchitecture build:
  • https://stackoverflow.com/questions/5334095/cmake-multiarchitecture-compilation
  • https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#id27
  • https://github.com/leetal/ios-cmake
• cross-compilation for Ubuntu arm64/ppc64el
• cross-compilation for Haiku:
  • https://jessicah.github.io/building-rust.html
  • https://github.com/kaidokert/scummvm-buildbot/blob/a6be13f7922466b576c998e80f9e1bf9d3a601f3/workers/haiku/Dockerfile

Packaging:

• Provide AppImage package
• Provide Flatpak package (#1050 (closed))
• DEB packages
  • Provide automated updates for our PPA on launchpad
• RPM packages
  • Add official openSUSE package and provide automated updates for it
    • We already have an unofficial package – #628 (closed)
  • #1044
• Add ebuild support (#623 (closed))

Useful links:

• https://askubuntu.com/questions/16446/how-to-get-my-software-into-ubuntu
• https://wiki.ubuntu.com/UbuntuDevelopment/NewPackages
• https://repology.org/project/openxray/versions