Replace i386 with emulated arm. The i386 is too unstable and could go…

… away soon anyway

.github/workflows/haskell-ci.yaml

@@ -86,65 +86,25 @@ jobs:
         cd ../vector-quicksort-*/
         cabal check
 
-  i386:
+  emulated:
     runs-on: ubuntu-latest
-    container:
-      image: i386/ubuntu:bionic
-
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest]
-        ghc:
-          - "9.2"
-          - "9.4"
-          - "9.6"
-
+        arch: ['armv7', 'aarch64']
     steps:
-    - name: Install
-      run: |
-        apt-get update -y
-        apt-get install -y autoconf build-essential zlib1g-dev libgmp-dev curl libncurses5 libtinfo5 libncurses5-dev libtinfo-dev
-
-        curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_MINIMAL=1 sh
-
-        source ~/.ghcup/env
-        ghcup install ghc --set ${{ matrix.ghc }}
-        ghcup install cabal latest
-
-    # This version must stay old enough to remain compatible with the container image.
-    - uses: actions/checkout@v1
-
-    - name: Cabal update
-      run: |
-        source ~/.ghcup/env
-        cabal --version
-
-    - name: Unpack
-      run: |
-        source ~/.ghcup/env
-        cabal update
-
-        cabal sdist --ignore-project --output-directory ..
-        cd ..
-        cabal get vector-quicksort-*.tar.gz
-
-    - name: Build
-      run: |
-        source ~/.ghcup/env
-
-        project_file="$(pwd)/cabal.project.test"
-        cd ../vector-quicksort-*/
-        cabal build --project-file "$project_file" --enable-tests --enable-benchmarks all
-
-    - name: Test
-      run: |
-        export LANG="C.UTF-8"
-        source ~/.ghcup/env
-
-        project_file="$(pwd)/cabal.project.test"
-        cd ../vector-quicksort-*/
-
-        cabal run --project-file "$project_file" test -- --quickcheck-tests=10000 --quickcheck-max-size=256
-
-        cabal bench --project-file "$project_file" --benchmark-options='--stdev 100 --timeout 600' all
+    - uses: actions/checkout@v4
+    - uses: uraimo/run-on-arch-action@v2
+      timeout-minutes: 60
+      with:
+        arch: ${{ matrix.arch }}
+        distro: ubuntu_rolling
+        githubToken: ${{ github.token }}
+        install: |
+          apt-get update -y
+          apt-get install -y curl ghc cabal-install libghc-tasty-quickcheck-dev libghc-tasty-hunit-dev
+        run: |
+          project_file="$(pwd)/cabal.project.test"
+          cabal build --project-file "$project_file" --enable-tests --enable-benchmarks all
+          cabal run --project-file "$project_file" test -- --quickcheck-tests=10000 --quickcheck-max-size=256
+          cabal run --project-file "$project_file" bench -- --stdev 100 --timeout 600