Use latest action

Author: artfuldev

.github/workflows/ci.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup Stack
-        uses: haskell/actions/setup@v2
+        uses: haskell-actions/setup@v2
         with:
           ghc-version: '9.8.4'
           enable-stack: true