Build and publish binaries to github releases on new repo tag.

[bergercookie]

This is a continuation of the work in https://github.com/bergercookie/asm-lsp/pull/16. The intention is to create binaries for x86 (and perhaps ARM? Depending on how straightforward this is) for asm-lsp and create a gh release with these artifacts. This should trigger every time we push a new tag to this repo.

Consider using https://github.com/marketplace/actions/build-and-upload-rust-binary-to-github-releases