CS:GO Update Release Notes for 12/9/2019

[ MISC ]
– It started snowing and the winter season fun begins which includes snowballs, festive chickens, and freeze frame holiday borders.
– Added 2020 Service Medal to be awarded for outstanding service and achievement starting from January 1, 2020 GMT.
– Adjusted weights on several end of match accolades.
– Removed a sound debug command.

[ MAPS ]
– Updated nav mesh for Office to prevent bots sometimes getting stuck.
– Updated Jungle.