Add macos build to releases

Is your feature request related to a problem? Please describe.

I'd like to download a pre-built release for macos using the same script I use for downloading it for linux machines.

Describe the solution you'd like

Use github actions to build broot for all platforms and publish to releases.

Additional context

I use the following steps to build and distribute a rust binary.

https://github.com/kdheepak/taskwarrior-tui/blob/fad4e5f642e3120ff2e0894b234ac15cf74c839d/.github/workflows/ci.yml

Releases are created and uploaded to github when a new tag is created automatically.

Additionally, I can download the binary using zinit with just two lines in my ~/.zshrc.

zinit ice wait:2 lucid extract"" from"gh-r" as"command" mv"taskwarrior-tui* -> tt"
zinit load kdheepak/taskwarrior-tui

I currently don't have write permissions in /usr/local so I cannot use brew to install broot.