Merge branch 'cabal-install-3.4.0.0-rc1'

.gitignore

.gitlab-ci.yml

.gitlab/script/ghcup_version.sh

README.md

app/ghcup-gen/Validate.hs

app/ghcup/BrickMain.hs

app/ghcup/Main.hs

bootstrap-haskell

cabal.project

ghcup-0.0.2.yaml

ghcup.cabal

lib/GHCup.hs

lib/GHCup/Download.hs

lib/GHCup/Errors.hs

lib/GHCup/Platform.hs

lib/GHCup/Requirements.hs

lib/GHCup/Types.hs

lib/GHCup/Types/JSON.hs

lib/GHCup/Types/Optics.hs

lib/GHCup/Utils.hs