Update haskell.yml

Author: lukel97

.github/workflows/haskell.yml

@@ -19,7 +19,7 @@ jobs:
  - uses: actions/checkout@v1
  with: 
  submodules: recursive
- - uses: haskell-works/setup-haskell@macos-ghcup
+ - uses: bubba/setup-haskell@macos-ghcup
  with:
  ghc-version: ${{matrix.ghc}}
  cabal-version: '3.0'