Switch to headless=new chrome interface

Change-Id: Id6f2c847bf5d5b1be65caf78cdd03977b409d5e4
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 004f184..d8d7fbe 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,7 +23,7 @@
 
     - start_section install_linux_packages "Installing missing Linux packages"
     - apt-get update
-    - apt-get install -y libvulkan1 libu2f-udev fonts-liberation build-essential libglpk40 libcurl4-gnutls-dev libxml2-dev libsodium-dev libsecret-1-dev libfontconfig1-dev libssl-dev libxt6 libpq-dev imagemagick ghostscript  inkscape scour
+    - apt-get install -y libvulkan1 libu2f-udev fonts-liberation build-essential libglpk40 libcurl4-gnutls-dev libxml2-dev libsodium-dev libsecret-1-dev libfontconfig1-dev libssl-dev libxt6 libpq-dev imagemagick inkscape scour poppler-utils
     - wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
     - dpkg -i google-chrome-stable_current_amd64.deb || apt-get install -y -f
     - locale-gen de_DE.utf8 en_GB.utf8 en_US.utf8