ci(config): upgrade ffmpeg versiob

.circleci/config.yml

@@ -6,6 +6,8 @@ jobs:
       - image: electronuserland/builder:wine-chrome
     steps:
       - checkout
+      - run: apt install software-properties-common
+      - run: add-apt-repository ppa:jonathonf/ffmpeg-4
       - run: apt-get -y update
       - run: apt-get -y install libusb-1.0-0-dev graphicsmagick libudev-dev
       - run: apt-get -y install tmux xvfb libxtst6 libxss1 libgtk2.0-0 libnss3 libasound2 libgconf-2-4 ffmpeg frei0r-plugins