Mise specific zig plugin

[dixonwille]

https://github.com/dixonwille/mise-zig

Since zig is in really early stages of development, their release cycle is long. So we run into issues where nightly breaks too often, but the "latest" tag does not have some of the newer features and enhancements. As a compromise, Mach Engine suggests nominating certain versions that are newer than latest, but not nightly. They have to ensure the version works with 40+ repositories and has a waiting period before it is marked as a nominated version.

With Mise and aliases, this works great as we can show the actual version (to lock down dependencies if needed) but also have the ability to track a more up to date version (mach-latest). It's still zig, so it isn't like the different flavors of the java runtime environment, but literally just making certain versions more stable. Allowing projects that pull in other zig packages to conform to something more up to date.

"latest" points to the last tagged version (not mach-latest) as that is what I believe most would expect.