Update .gitlab-ci.yml - ensure xorg deps are installed

.gitlab-ci.yml

@@ -42,6 +42,7 @@ build:debian:
   stage: build
   before_script:
     - apt update && apt install -y build-essential python3-pip cmake pkg-config
+    - apt install -y libx11-dev libx11-xcb-dev libfontenc-dev libice-dev libsm-dev libxau-dev libxaw7-dev libxcomposite-dev libxcursor-dev libxdamage-dev libxdmcp-dev libxext-dev libxfixes-dev libxft-dev libxi-dev libxinerama-dev libxkbfile-dev libxmu-dev libxmuu-dev libxpm-dev libxrandr-dev libxrender-dev libxres-dev libxss-dev libxt-dev libxtst-dev libxv-dev libxvmc-dev libxxf86vm-dev xtrans-dev libxcb-render0-dev libxcb-render-util0-dev libxcb-xkb-dev libxcb-icccm4-dev libxcb-image0-dev libxcb-keysyms1-dev libxcb-randr0-dev libxcb-shape0-dev libxcb-sync-dev libxcb-xfixes0-dev libxcb-xinerama0-dev xkb-data libxcb-dri3-dev uuid-dev libxcb-util0-dev
     - apt install -y libgl-dev
     - pip install conan
   script: