Require specific zig version in build script

[Sze]

From Build System Tricks :

@tensorush

3) Dependence on the Zig Compiler version

const builtin = @import("builtin");

comptime {
    const required_zig = "0.12.0-dev.3302";
    const current_zig = builtin.zig_version;
    const min_zig = std.SemanticVersion.parse(required_zig) catch unreachable;
    if (current_zig.order(min_zig) == .lt) {
        const error_message =
            \\Sorry, it looks like your version of zig is too old. :-(
            \\
            \\(Insert your program name here) requires development build {}
            \\
            \\Please download a development ("master") build from
            \\
            \\https://ziglang.org/download/
            \\
            \\
        ;
        @compileError(std.fmt.comptimePrint(error_message, .{min_zig}));
    }
}