chore(ci): install Roboto font from Google Fonts instead of apt (DevExpress#33317)

Author: EugeniyKiyashko

.github/workflows/demos_visual_tests.yml

@@ -546,23 +546,38 @@ jobs:
     - name: Install dependencies
       run: pnpm install --frozen-lockfile
 
+    - name: Set Roboto font directory
+      if: contains(matrix.THEME, 'material')
+      run: echo "ROBOTO_FONT_DIR=${HOME}/.local/share/fonts/roboto" >> $GITHUB_ENV
+
     - name: Cache Roboto font
       if: contains(matrix.THEME, 'material')
       id: cache-roboto
       uses: actions/cache@v4
       with:
-        path: /usr/share/fonts/truetype/roboto
-        key: roboto-font-${{ runner.os }}
+        path: ${{ env.ROBOTO_FONT_DIR }}
+        key: roboto-font-${{ runner.os }}-8b0a1d0f5983c89bc2b93f1b5fb55f9e252744b5
 
     - name: Install Roboto font for Material theme
       if: contains(matrix.THEME, 'material') && steps.cache-roboto.outputs.cache-hit != 'true'
+      env:
+        GOOGLE_FONTS_COMMIT: 8b0a1d0f5983c89bc2b93f1b5fb55f9e252744b5
+        ROBOTO_SHA256: d7598e12c5dbef095ff8272cfc55da0250bd07fbdecbac8a530b9b277872a134
       run: |
-        echo "Installing Roboto font..."
-        sudo apt-get update -qq
-        sudo apt-get install -y -qq fonts-roboto fonts-roboto-unhinted
-        sudo fc-cache -f -v > /dev/null 2>&1 || true
+        echo "Installing Roboto font from google/fonts (pinned commit)..."
+        mkdir -p "$ROBOTO_FONT_DIR"
+        BASE_URL="https://raw.githubusercontent.com/google/fonts/${GOOGLE_FONTS_COMMIT}/ofl/roboto"
+
+        curl -fsSL "${BASE_URL}/Roboto%5Bwdth%2Cwght%5D.ttf" -o /tmp/Roboto.ttf
+        echo "${ROBOTO_SHA256}  /tmp/Roboto.ttf" | sha256sum -c -
+
+        mv /tmp/Roboto.ttf "$ROBOTO_FONT_DIR/"
         echo "Roboto font installed"
 
+    - name: Refresh font cache
+      if: contains(matrix.THEME, 'material')
+      run: fc-cache -f > /dev/null 2>&1
+
     - name: Run Web Server
       run: python -m http.server 8080 &