ci: bsim: Improve path triggers for bsim tests

Let's also run the BabbleSim tests when either
the native simulator or the the include headers
are changed.
The include path was forgotten when creating the filter.
The nrf52_bsim was changed to use the native simulator
in 3a4bebac

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>