Install cabal head in CI

Author: nlander

.github/actions/setup-build/action.yml

@@ -7,7 +7,7 @@ inputs:
   cabal:
     description: "Cabal version"
     required: false
-    default: "3.8.1.0"
+    default: "head"
   os:
     description: "Operating system: Linux, Windows or macOS"
     required: true
@@ -31,7 +31,7 @@ runs:
         sudo chown -R $USER /usr/local/.ghcup
       shell: bash
 
-    - uses: haskell/actions/setup@v2.4.4
+    - uses: nlander/actions/setup@install-cabal-head
       id: HaskEnvSetup
       with:
         ghc-version  : ${{ inputs.ghc   }}

.github/workflows/bench.yml

@@ -121,7 +121,7 @@ jobs:
         example: ['cabal', 'lsp-types']
 
     steps:
-    - uses: haskell/actions/setup@v2.4.4
+    - uses: nlander/actions/setup@install-cabal-head
       with:
         ghc-version  : ${{ matrix.ghc   }}
         cabal-version: ${{ matrix.cabal }}