[ci] Use cmake --build instead of calling ninja directly

Author: dacap

.github/workflows/build.yml

@@ -34,9 +34,7 @@ jobs:
           -DCMAKE_EXE_LINKER_FLAGS=${{ matrix.sanitizer }} \
           -DOBSERVABLE_BENCHMARKS=${{ matrix.benchmark }}
     - name: Compiling
-      shell: bash
-      run: |
-        ninja
+      run: cmake --build .
     - name: Running Tests
       shell: bash
       run: |