fix(stop): change csgoserver stop mode (#3171)

Co-authored-by: Daniel Gibbs <me@danielgibbs.co.uk>

lgsm/config-default/config-lgsm/csgoserver/_default.cfg

@@ -158,7 +158,7 @@ steammaster="true"
 # 9: GoldSrc
 # 10: Avorion
 # 11: end
-stopmode="3"
+stopmode="9"
 
 ## Query mode
 # 1: session only