[gitlab-runner] arm64 is supported upstream, could be added

[w8jcik]

The package is missing arm64. Adding it is as easy as this:

$this->bbcode_second_pass_code('', 'sed -i s/-arm/-arm64/g PKGBUILD
makepkg --skipinteg')

So just different tarball needs to be fetched for arm64, the rest stays the same.

Could it be added?

This way we could use GitLab runner on Rapsberry Pi 3 and Raspberry Pi 4 64 bit without building it manually.

These devices are not really suited for building of this package. It takes a lot of time and Raspberry Pi 3 also needs swap space.

I asked in the mainstream Arch bugtracker, because ARM support is already in the package so it would be consistent to change it in upstream Arch, but they closed my ticket right away.