Constrain number of threads in CI tests
Constrain number of threads in CI tests

dariomangoni/chrono,projectchrono/chrono,dariomangoni/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,projectchrono/chrono,rserban/chrono,rserban/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,projectchrono/chrono,dariomangoni/chrono,rserban/chrono,rserban/chrono,Milad-Rakhsha/chrono,rserban/chrono,Milad-Rakhsha/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,rserban/chrono,rserban/chrono,dariomangoni/chrono,projectchrono/chrono,dariomangoni/chrono