cabal init -i: add the GHC2021 language option (fix #8265)

[cabal.git] / changelog.d / pr-7657

synopsis: Regenerate bootstrap/ with GHC updated from 8.10.4 to 8.10.7
pr: #7657 #7658
description: {

- This regenerates bootstrap plans using new package versions and also updating GHC from 8.10.4 to 8.10.7, as requested by GHC HQ.
}