Use haskell-actions instead of haskell/actions

The latter is deprecated

Author: tomjaguarpaw

.github/workflows/ci.yml

@@ -67,7 +67,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
 
-    - uses: haskell/actions/setup@v2
+    - uses: haskell-actions/setup@v2.7
       id: setup-haskell-cabal
       name: Setup Haskell
       with: