Re-add original build step

Author: t-sommer

.github/workflows/gh-pages.yml

@@ -12,3 +12,17 @@ permissions:
 jobs:
   build-hugo-website:
     uses: https://github.com/modelica/ma-hugo-theme/.github/workflow-templates/build-hugo-website.yml@f68cd5ef0ea651e00e45d607f2284ac68be6679e
+  build:
+    runs-on: ubuntu-24.04
+    env:
+      HUGO_VERSION: 0.143.1
+    steps:
+      - name: Install Hugo CLI
+        run: |
+          wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \
+          && sudo dpkg -i ${{ runner.temp }}/hugo.deb
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0