Nerfs peaceborg chain bucklestun (#32251)

The definition of a trap option is that you don't know its a trap option until you use it. Obviously anyone who has tried it before realizes that they're a stunted joke but that doesn't make it any worse of a addition to the game.

code/modules/fields/peaceborg_dampener.dm

@@ -42,7 +42,7 @@
 		if(R.has_buckled_mobs())
 			for(var/mob/living/L in R.buckled_mobs)
 				L.visible_message("<span class='warning'>[L] is knocked off of [R] by the charge in [R]'s chassis induced by [name]!</span>")	//I know it's bad.
-				L.Knockdown(60)
+				L.Knockdown(10)
 				R.unbuckle_mob(L)
 				do_sparks(5, 0, L)
 	..()