Add msfonts caching to avoid install issues

.github/workflows/4testing-build.yml

@@ -106,6 +106,22 @@ jobs:
           username: ${{ secrets.DOCKER_HUB_USERNAME }}
           password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
 
+      - name: Prepare fonts cache
+        id: fonts
+        uses: actions/cache@v4
+        with:
+          path: fonts
+          key: fonts-${{ runner.os }}-v1
+
+      - name: Install fonts if not cached
+        if: steps.fonts.outputs.cache-hit != 'true'
+        run: |
+          sudo apt-get update
+          echo "ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true" | sudo debconf-set-selections
+          sudo apt-get install -y ttf-mscorefonts-installer
+          mkdir -p fonts/msttcorefonts
+          cp -a /usr/share/fonts/truetype/msttcorefonts/* fonts/msttcorefonts/
+
       - name: Build 4testing
         id: build-ds
         env: