haskellPackages.cabal-install: ignore stackage bound

We have generally shipped the latest cabal-install version. Stackage has
re-added cabal-install recently which caused cabal-install to get
downgraded to 3.4 to match the Cabal version shipped by GHC 9.0.2. This
commit reverts that change.

maintainers/scripts/haskell/update-stackage.sh

@@ -45,6 +45,7 @@ sed -r \
     -e '/ distribution-nixpkgs /d' \
     -e '/ jailbreak-cabal /d' \
     -e '/ language-nix /d' \
+    -e '/ cabal-install /d' \
     < "${tmpfile}.new" >> $stackage_config
 
 if [[ "${1:-}" == "--do-commit" ]]; then