Support GHC 9.2

[andreasabel]

Relax upper bounds (supporting GHC 9.2), include 9.2 in CI.

Successful CI run at: https://github.com/andreasabel/malcolm-wallace-universe/actions/runs/1409034526

Let me know if you want me to also implement these revisions on hackage.

UPDATE:

• blocking polyparse won't install on ghc 9.2.1 haskell-infra/hackage-trustees#320

[phadej]

HaXml is maintained at https://github.com/HaXml/HaXml

[andreasabel]

HaXml is maintained at HaXml/HaXml

Ah, good to know!
I was mostly interested in polyparse, but then, CI runs for all four packages (including HaXml).

[phadej]

Let's see if CI passes. I think that in light of #9 iit wouldn't. EDIT: I see, I merged the fix here. Good for CI.

If it is so, it will be fine to comment out HaXml from cabal.project, it's a leaf package in this project.

[andreasabel]

CI passed. OK if I make these revisions?:

• polyparse (base, bytestring) https://hackage.haskell.org/package/polyparse
• cpphs (time) https://hackage.haskell.org/package/cpphs

[phadej]

@andreasabel please do