ghc-bignum version is not bumped
in GHC-9.0 nor GHC-9.2 branch, but it contains additions of new instances.
See my comment on 882cc363 (comment 352573)
This is a release blocker for both GHC-9.0.2 and GHC-9.2.1.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information