Build and test AUR package

[chfast]

The AUR packages are used by Arch Linux. It looks some solidity core devs are using these. Include the PKGBUILD config here and test it on CI.

• https://aur.archlinux.org/packages/evmone
• https://wiki.archlinux.org/title/CMake_package_guidelines

cc @cameel

[cameel]

Is there anything I should do related to this?

Also, I can add you as a co-maintainer if you want to be able to update the package if something in the build process changes.

[chfast]

No. I just wanted to notify you so you can comment if this makes sense or not.

[cameel]

ok. Thanks!

[cameel]

And as for whether it makes sense - it definitely won't hurt, especially if you already have Arch-based image available in CI. Expect to have more breakage to deal with though - simply because Arch quickly adopts bleeding edge versions of everything. For example right now in the Solidity repo we're trying to deal with compilation warnings (treated as errors) because GCC 12 just hit the repos. Apparently Boost is not yet prepared and generates some warnings. On one hand this lets us discover these issues quickly but on the other hand generates more churn in CI than we would have otherwise.