[CI] Bump haskell-setup to v2

Author: lierdakil

.github/workflows/haskell.yml

@@ -17,11 +17,10 @@ jobs:
     container: ${{ matrix.container }}
     steps:
     - uses: actions/checkout@v2
-    - uses: haskell/actions/setup@v1
+    - uses: haskell/actions/setup@v2
       if: '!(matrix.container)'
       with:
         ghc-version: ${{matrix.ghcver}}
-        cabal-version: '3.10.1.1'
     - name: Cabal init
       shell: pwsh
       run: |