Switch to zstd modules && compress with -19
Recently, we have changed the nvidia modules to compress with zstd to follow the kernel modules. Lets also do this here.
Some links: Issue: nvidia-open#2 (closed)
Discussion: nvidia-open@3e1e8288
"linux" PKGBUILD -19 Compression: https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/blob/main/PKGBUILD?ref_type=heads#L126
Signed-off-by: Peter Jung admin@ptr1337.dev