Relax upper bound of text to build with ghc-9.8.1

[facundominguez]

The bound is updated in the repo 7e443e8, but it would need to be updated in hackage as well, where I don't have permissions.

[zgrannan]

Thanks for the fix! Latest version has been added to hackage: https://hackage.haskell.org/package/rest-rewrite-0.4.3