go to
C:\Program Files (x86)\Steam\steamapps\workshop\content\294100\1631756268\Defs\Stats

open pawn inventory and edit it in notepad should be two stats in there one 40 the weight and the other 20 the bulk. i would set the file as a read only to be sure it dont change

Also the long string of numbers in the file address might be different for you just search for '' Stats_Pawns_Inventory '' in
C:\Program Files (x86)\Steam\steamapps\workshop\content

That is if your steam is installed on the c drive