Publish to luarocks with automated semver versioning/releases

[simifalaye]

I believe this repo would benefit from publishing to luarocks for rocks.nvim and lazy.nvim users. On top of the reasons provided in the rocks.nvim and the nvim-best-practices repos, another reason is that this plugin produces/deploys a binary that needs to be available on a user's machine so deploying that to luarocks would simplify that deployment since both rocks.nvim and lazy.nvim support the use of a rockspec.

See this repo for detailed instructions: https://github.com/nvim-neorocks/sample-luarocks-plugin