Fix remaining dependency in CI

Signed-off-by: Tobias Frisch <tfrisch@uni-koblenz.de>

.github/workflows/linux.yml

@@ -25,7 +25,7 @@ jobs:
         run: |
           sudo apt-get -qq update
           sudo apt-get -qq install ninja-build cmake extra-cmake-modules g++
-          sudo apt-get -qq install libvulkan-dev xorg-dev libwayland-dev
+          sudo apt-get -qq install libvulkan-dev xorg-dev libwayland-dev libxkbcommon-dev
 
       - name: Build framework
         run: |