Update GHC and tools in GHA

Author: amesgen

.github/workflows/checks.yml

@@ -95,8 +95,8 @@ jobs:
       uses: input-output-hk/actions/haskell@latest
       id: setup-haskell
       with:
-        cabal-version: "3.10.1.0"
-        ghc-version: "9.6.5"
+        cabal-version: "3.12.1.0"
+        ghc-version: "9.6.6"
 
     - name: Install base libraries
       uses: input-output-hk/actions/base@latest

.github/workflows/ci.yml

@@ -29,16 +29,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ghc: ["8.10.7", "9.6.5", "9.8.2"]
+        ghc: ["8.10.7", "9.6.6", "9.8.2"]
         variant: [default, no-thunks]
         exclude:
           - variant:
               ${{ (github.event_name == 'schedule' || inputs.nothunks) && 'default' || 'no-thunks' }}
     env:
       # Modify this value to "invalidate" the Cabal cache.
-      CABAL_CACHE_VERSION: "2024-01-29"
+      CABAL_CACHE_VERSION: "2024-07-04"
 
-      CABAL: "3.10.3.0"
+      CABAL: "3.12.1.0"
 
     steps:
     - uses: actions/checkout@v4
@@ -186,7 +186,7 @@ jobs:
       if: |
         github.event_name == 'push'
         && github.ref == 'refs/heads/main'
-        && matrix.ghc=='9.6.5'
+        && matrix.ghc=='9.6.6'
       run: |
         # need for latex, dvisvgm and standalone
         sudo apt install texlive-latex-extra texlive-latex-base
@@ -201,7 +201,7 @@ jobs:
       if: |
         github.event_name == 'push'
         && github.ref == 'refs/heads/main'
-        && matrix.ghc=='9.6.5'
+        && matrix.ghc=='9.6.6'
       uses: actions/upload-artifact@v4
       with:
         name: haddocks

.github/workflows/hlint.yml

@@ -29,7 +29,7 @@ jobs:
     - name: 'Set up HLint'
       uses: haskell-actions/hlint-setup@v2
       with:
-        version: 3.6.1
+        version: 3.8
 
     - name: 'Run HLint'
       uses: haskell-actions/hlint-run@v2

scripts/docs/haddocks.sh

@@ -25,7 +25,7 @@ GHC_VERSION=$(ghc --numeric-version)
 if ! command -v cabal-docspec &> /dev/null
 then
   # cabal-docspec. Download binary
-  curl -sL https://github.com/phadej/cabal-extras/releases/download/cabal-docspec-0.0.0.20240414/cabal-docspec-0.0.0.20240414-x86_64-linux.xz > cabal-docspec.xz
+  curl -sL https://github.com/phadej/cabal-extras/releases/download/cabal-docspec-0.0.0.20240703/cabal-docspec-0.0.0.20240703-x86_64-linux.xz > cabal-docspec.xz
   # this doesn't seem to exist in GH runners?
   mkdir -p "$HOME"/.local/bin
   xz -d < cabal-docspec.xz > "$HOME"/.local/bin/cabal-docspec