fix: replace removed std.Build.host with std.Build.graph.host

[futsuuu]

SSIA

[futsuuu]

@andrewrk Would you please review?

[kristoff-it]

The website shows snippets for the current stable release. Those snippets are tested by CI and will be updated once 0.14.0 is released.

[futsuuu]

@kristoff-it std.Build.host is already deprecated in Zig v0.13.0. ziglang/zig@22a97cd

[kristoff-it]

My bad! This surprised me because I excpected to see a build error in case of a wrong snippet.

This means that we also need to fix something else on the CI machine.

Thanks for your report.

[kristoff-it]

I reviewed the build script. b.host still works in 0.13.0. once @deprecated is implemented and deprecation turns in a compile error, we'll start updating code snippets on the website more eagerly, but not for now.

The 0.14.0 release will update that stuff.