Update test with callback

We
- shorten the timer of the callback
- lengthen the time_limit of the ortools solver itself

to avoid assert errors which happens if no solution found
- after the callback timer but
- before the solver own timer.

tests/rcpsp/solver/test_rcpsp_cp.py

@@ -204,10 +204,10 @@ def on_step_end(self, step: int, res: ResultStorage, solver: CPSatRCPSPSolver):
             logging.debug(sol.rcpsp_schedule)
             logging.debug(sol.rcpsp_modes)
 
-    callbacks = [VariablePrinterCallback(), TimerStopper(2)]
+    callbacks = [VariablePrinterCallback(), TimerStopper(1)]
 
     with caplog.at_level(logging.DEBUG):
-        result_storage = solver.solve(callbacks=callbacks, time_limit=10)
+        result_storage = solver.solve(callbacks=callbacks, time_limit=20)
 
     assert "Solution #1" in caplog.text
     assert (