Add webkit deps

Author: marvinhagemeister

.github/workflows/ci.yml

@@ -14,6 +14,10 @@ jobs:
       - uses: actions/setup-node@v1
         with:
           node-version: '12.x'
+      - name: Install webkit deps
+        run: |
+          sudo apt-get update 
+          sudo apt-get install libgstreamer1.0-0 libbrotli1 libopus0 libwoff1 libgstreamer-plugins-base1.0-0 libgstreamer-gl1.0-0 libgstreamer-plugins-bad1.0-0 libopenjp2-7 libwebpdemux2 libhyphen0 libgles2
       - name: Cache node modules
         uses: actions/cache@v1
         env: