dt of AttackPlanner

[DavideA]

Hi,

And thank you for your work.
I have noticed that the update function of the AttackPlanner takes an hardcoded dt=0.1:
https://github.com/hyzhou404/HUGSIM/blob/main/sim/utils/plan.py#L108

If I understand correctly, this means that if I change the kinematics dt, it will result in an attacker with a different speed.
Is this desired behavior? What is the best way to make the attacker speed independent of the kinematics dt?

Thanks!