Please create v2.1 git tag for 2.1-0 release

[vadi2]

The 2.1-0 rockspec released in #16 points to the v2.1 branch rather than a tag:

source = {
    url = "git://github.com/brimworks/lua-yajl.git",
    branch = "v2.1",
}

This causes problems for package managers that need to download source archives (e.g., Flatpak), since GitHub only provides archive downloads for tags, not branches.

Could you create a v2.1 tag pointing to the current head of the v2.1 branch? This would allow:

• https://github.com/brimworks/lua-yajl/archive/refs/tags/v2.1.tar.gz to work
• Consistent, reproducible builds

Thanks!