Add CI to push updates on new version tagging

[pastaq]

Feature request

We should push to the various packaging repositories we maintain automatically using CI when a new version tag is released to avoid excess work. (AUR/Terra/COPR/etc.)

AUR:
https://aur.archlinux.org/packages/gamescope-ogc
https://aur.archlinux.org/packages/gamescope-ogc-git