community/alacritty: update project URL
The repo moved to https://github.com/alacritty/alacritty - so let's use this as the pkgs URL. The old URL forwards to the new repo, so no need to rebuild the package just for the URL IMO.
The repo moved to https://github.com/alacritty/alacritty - so let's use this as the pkgs URL. The old URL forwards to the new repo, so no need to rebuild the package just for the URL IMO.