CI: use cabal-install-3.12

because of the bug of haskell/cabal#10704

Author: debug-ito

.github/workflows/haskell.yml

@@ -43,6 +43,7 @@ jobs:
       id: cabal-setup-haskell
       with:
         ghc-version: ${{ matrix.plan.ghc }}
+        cabal-version: '3.12'
 
     - name: Configure and freeze
       run: |