Update build-linux-gcc_x64.yml

Author: hogsy

.github/workflows/build-linux-gcc_x64.yml

@@ -16,7 +16,7 @@ jobs:
     steps:    
     - uses: actions/checkout@v4.2.2
 
-    - run: sudo apt install gcc g++ make libsdl2-dev
+    - run: sudo apt install gcc g++ make libsdl2-dev libglu1-mesa libglu1-mesa-dev
 
     - name: Configure CMake
       run: cmake -B ${{github.workspace}}/build -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}