Used newer clangd version for ubuntu

.github/workflows/ubuntu_test_cases.yml

@@ -25,6 +25,11 @@ jobs:
         run: sudo pip3 install xcrun && sudo pip3 install gcovr && sudo apt-get update && sudo apt-get install lcov libxrandr-dev libxcursor-dev libudev-dev libopenal-dev libflac-dev libvorbis-dev libgl1-mesa-dev libegl1-mesa-dev freeglut3-dev # OpenGL dependencies only needed for SFML
       - name: Install dependencies
         run: pip install -r requirements.txt
+      - name: Install newer clangd
+        run: |
+          wget https://apt.llvm.org/llvm.sh
+          chmod +x ./llvm.sh
+          sudo ./llvm.sh 17
       - name: Configure CMake
         # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
         # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type