Inline the matrix test steps

Author: hjwp

.github/workflows/tests.yml

@@ -32,9 +32,58 @@ jobs:
           test_chapter_16_javascript,
           unit-test
         ]
+
     steps:
       - uses: actions/checkout@v4
-      - id: foo
-        uses: hjwp/github-actions@v8
+
+      - name: checkout submodules
+        shell: bash
+        run: |
+          sed -i '[email protected]:_https://github.com/_' .gitmodules
+          git submodule update --init --recursive
+
+      - name: setup Git
+        shell: bash
+        run: |
+          git config --global user.email "[email protected]"
+          git config --global user.name "Elspeth See-Eye"
+          git config --global init.defaultBranch main
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
+
+      - name: Install apt stuff and other dependencies
+        shell: bash
+        run: |
+          sudo add-apt-repository ppa:mozillateam/ppa
+          sudo apt update -y
+          sudo apt install -y \
+            asciidoctor \
+            language-pack-en \
+            ruby-coderay \
+            ruby-pygments.rb \
+            firefox-esr \
+            tree \
+            locales
+          sudo locale-gen en_GB.UTF-8
+
+      - name: Install Python requirements.txt
+        shell: bash
+        run: |
+          pip install .
+
+      - name: Run chapter test
+        shell: bash
+        run: |
+          make  ${{ matrix.test_chapter }}
+
+      - name: Archive the built html files
+        uses: actions/upload-artifact@v4
+        if: always()
         with:
-          test_chapter: ${{ matrix.test_chapter }}
+          name: built-html-${{ matrix.test_chapter }}
+          path: |
+            *.html
+            *.css