Fix workflow on Ubuntu 24

The GitHub runner image already includes Ninja now; We don't need to install it on our side. See actions/runner-images#11761.

Author: michael-jabbour-sonarsource

.github/workflows/build.yml

@@ -15,10 +15,6 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
-      - name: Install Ninja
-        run: |
-          wget https://github.com/ninja-build/ninja/releases/download/v1.12.1/ninja-linux.zip
-          sudo unzip ninja-linux.zip -d /usr/local/bin
       - name: Install clang
         run: |
           sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ${{env.CLANG_VERSION}}