(CI) Moved all dependencies to repository variable.

#SR_CLOSE(68)

.github/workflows/LinuxCI.yml

@@ -28,9 +28,9 @@ jobs:
           wget -qO- https://packages.lunarg.com/lunarg-signing-key-pub.asc | sudo tee /etc/apt/trusted.gpg.d/lunarg.asc
           sudo wget -qO /etc/apt/sources.list.d/lunarg-vulkan-jammy.list http://packages.lunarg.com/vulkan/lunarg-vulkan-jammy.list
           sudo apt update
-          sudo apt-get install -y libgtk-3-0 cmake build-essential libgtk-3-dev libx11-dev libxcb-randr0-dev
-          sudo apt-get install -y xcb libxcb-xkb-dev x11-xkb-utils libx11-xcb-dev libxkbcommon-x11-dev libxtst-dev libxcb-ewmh-dev binutils-dev
-          sudo apt install vulkan-sdk
+          sudo apt-get install -y $env.dependencies
+        env:
+          dependencies: ${{ vars.UBUNTU_DEPENDENCIES }}
 
       - name: Updating submodules.
         run: git submodule --quiet update --init --recursive --depth 1 --jobs 4