fix(es_extended/server/classes/player): make setInventoryItem a no-op on no change

Setting an item to the count it already has sent a zero difference to
removeInventoryItem, which treats zero as an error and calls error(). That
unwinds out of the caller, so anything after the call was skipped.

[core]/es_extended/server/classes/player.lua

@@ -505,6 +505,10 @@ function CreateExtendedPlayer(playerId, identifier, ssn, group, accounts, invent
         if item and count >= 0 then
             count = ESX.Math.Round(count)
 
+            if count == item.count then
+                return
+            end
+
             if count > item.count then
                 self.addInventoryItem(item.name, count - item.count)
             else