Change stimulants TC cost to 6

[Boxta]

Title, A traitor with a csaber, and stims can simply not be stunned or knocked out. With a attached csaber arm, and some basic meds, this combo is incredibly powerfull as it results in a nigh unkillable 80 damage sword wielder, which can kill in two or three hits. This is both incredibly unfun for the victims, as often times the rampage happens early in the round, and makes the round much more boring, generally resulting in a 20 minute shuttle