Build arm64-linux in CI

[littlebenlittle]

How much of a lift would it be to build for the arm64/aarch64 linux triple for releases?

I gave it a shot but I really don't know what I'm doing with vcpkg or C build systems in general.

[yashikada]

I hope @netheril96 reply to your request, I'd like use securefs 1.0.0 on raspberry but no success until now.

[mhogomchungu]

SiriKali is now on flathub and it bundles securefs on both x86_64 and aarch64 architectures.

Flapak does not support vcpkg and i manually installed all dependencies.

If you can install flatpak on your system then you can easily build securefs for aarch64 by slightly modifying my flatpak json manifest .

After you build it in flatpak, you can take it out and use it normally.