.github: Speed up ubuntu CI

Author: simnalamburt

.github/workflows/ci.yml

@@ -28,11 +28,9 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       # Platform-specific dependencies
-      - if: matrix.os == 'ubuntu-24.04'
-        uses: awalsh128/cache-apt-pkgs-action@v1
-        with:
-          packages: libfontconfig-dev
-          version: 0
+      - if: matrix.os == 'ubuntu-24.04' && matrix.project == 'sampleapp-vulkano'
+        run: |
+          sudo apt install -y libfontconfig-dev libshaderc-dev
       - if: matrix.os == 'macos-latest' && matrix.project == 'sampleapp-vulkano'
         run: |
           brew install shaderc