CI: Re-enable bzlmod with GHC 9.4.x

Author: avdv

.github/workflows/workflow.yaml

@@ -27,10 +27,6 @@ jobs:
         exclude:
           - module: rules_haskell_nix
             bzlmod: false
-          # TODO: in a MODULE.bazel file we declare version specific dependencies, would need to use stack snapshot json
-          #       and stack config per GHC version
-          - ghc: 9.4.5
-            bzlmod: true
     runs-on: ${{ matrix.os }}
     steps:
       - if: ${{ matrix.os == 'ubuntu-latest' }}