Merge branch 'chores'

.gitlab-ci.yml

.gitlab/script/ghcup_version.sh

.gitlab/script/hlint.sh

.hlint.yaml

app/ghcup-gen/Main.hs

app/ghcup-gen/Validate.hs

app/ghcup/BrickMain.hs

app/ghcup/Main.hs

cabal.project

ghcup.cabal

hie.yaml

lib/GHCup.hs

lib/GHCup/Download.hs

lib/GHCup/Download/IOStreams.hs

lib/GHCup/Download/Utils.hs

lib/GHCup/Errors.hs

lib/GHCup/Platform.hs

lib/GHCup/Requirements.hs

lib/GHCup/Types.hs

lib/GHCup/Types/JSON.hs