CI: Require GHC 9.2 as the minimum

This patch updates the GHC versions that `macaw-loader`'s CI tests to use GHC
9.2.8 as the minimum. It also updates the `cabal` version accordingly.

While I was in town, I also used the latest versions of the `checkout` and
`haskell-actions/setup` actions, as they were also out of date.

Fixes #22.

.github/workflows/ci.yaml

@@ -7,20 +7,20 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ghc-ver: ["8.10.7", "9.2.7", "9.4.4"]
-        cabal: ["3.8.1.0"]
+        ghc-ver: ["9.2.8", "9.4.8", "9.6.6"]
+        cabal: ["3.10.3.0"]
       # complete all jobs
       fail-fast: false
     name: macaw-loader - GHC v${{ matrix.ghc-ver }} - ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         submodules: true
     - name: Copy cabal project files
       run: |
         cp cabal.project.dist cabal.project
-    - uses: haskell/actions/setup@v1
+    - uses: haskell-actions/setup@v2
       id: setup-haskell
       name: Setup Haskell
       with: