update CI versions (should just use Nix now really...)

Author: georgefst

.github/workflows/haskell.yml

@@ -20,8 +20,8 @@ jobs:
         uses: haskell-actions/setup@v2
         id: setup
         with:
-          ghc-version: '9.4'
-          cabal-version: '3.10'
+          ghc-version: '9.12'
+          cabal-version: '3.16'
           cabal-update: true
 
       - name: Install libevdev