set minimum required zig version from build.zig.zon

Author: EriksRemess

build.zig

@@ -3,9 +3,10 @@ const assert = std.debug.assert;
 const builtin = @import("builtin");
 const buildpkg = @import("src/build/main.zig");
 const appVersion = @import("build.zig.zon").version;
+const minimumZigVersion = @import("build.zig.zon").minimum_zig_version;
 
 comptime {
-    buildpkg.requireZig("0.15.1");
+    buildpkg.requireZig(minimumZigVersion);
 }
 
 pub fn build(b: *std.Build) !void {