Migrate to new Zig compiler #699

Job	Run time
build-and-test-nix (macos-15-intel)	4m 0s
build-and-test-nix (macos-15)	2m 32s
build-and-test-nix (ubuntu-24.04-arm)	1m 42s
build-and-test-nix (ubuntu-22.04)	1m 27s
	9m 41s

Provide feedback