Upgrade Zig version to `0.16.0` #49

Job	Run time
tests (ubuntu-latest, https://ziglang.org/download/0.16.0/zig-x86_64-linux-0.16.0.tar.xz, zig-x86...	1m 8s
tests (windows-latest, https://ziglang.org/download/0.16.0/zig-x86_64-windows-0.16.0.zip, zig-x86...	2m 46s
tests (macos-latest, https://ziglang.org/download/0.16.0/zig-aarch64-macos-0.16.0.tar.xz, zig-aar...	1m 3s
	4m 57s

Provide feedback