Merge pull request #19 from servo/fix-linux-bootstrap-on-wpt-runner

fix linux bootstrap process for wpt runner

.github/workflows/run-wpt.yml

@@ -28,26 +28,14 @@ jobs:
         with:
           repository: servo/servo
           path: servo
-      - name: Cache libffi
-        id: cache
-        uses: actions/cache@v3
-        with:
-          path: ./libffi6_3.2.1-8_amd64.deb
-          key: cache-libffi
-      - name: Download libffi
-        if: steps.cache.outputs.cache-hit != 'true'
-        run: |
-          wget http://mirrors.kernel.org/ubuntu/pool/main/libf/libffi/libffi6_3.2.1-8_amd64.deb
       - name: Prep test environment
         run: |
           python3 -m pip install --upgrade pip virtualenv
           sudo apt update
-          sudo apt install -qy --no-install-recommends libgl1 libssl1.1 libdbus-1-3 libxcb-xfixes0-dev libxcb-shape0-dev libunwind8 libegl1-mesa
-          sudo apt install -qy libgstreamer1.0-0 libgstreamer-gl1.0-0 libgstreamer-plugins-bad1.0-0
-          sudo apt install ./libffi6_3.2.1-8_amd64.deb
+          sudo apt install -qy --no-install-recommends mesa-vulkan-drivers
       - name: Download latest nightly
         run: |
-          ./mach bootstrap-gstreamer
+          ./mach bootstrap
           wget -O servo-latest.tar.gz "${{ env.NIGHTLY_PATH }}"
           tar -xzf servo-latest.tar.gz
           mkdir -p target/release