Removes -j2 from build flags. Ninja should manage the parallel build

Author: weslleyspereira

.github/workflows/cmake.yml

@@ -109,7 +109,7 @@ jobs:
       run: |
         ctest -D ExperimentalStart
         ctest -D ExperimentalConfigure
-        ctest -D ExperimentalBuild -j2
+        ctest -D ExperimentalBuild
 
     - name: Test with OpenMP
       working-directory: ${{github.workspace}}/build