Add Linux dependencies installation step

Added step to install Linux dependencies for Ubuntu.

Author: MaelProgramming

.github/workflows/cmake-multi-platform.yml

@@ -19,6 +19,11 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
+    - name: Install Linux Dependencies
+      if: matrix.os == 'ubuntu-latest'
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libx11-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libgl1-mesa-dev xorg-dev
 
     - name: Configure CMake
       run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=Release