fix(callback): incorrect args in __call method

fxmanifest.lua

@@ -23,7 +23,7 @@ game         'gta5'
 --[[ Resource Information ]]--
 name         'ox_lib'
 author       'Linden'
-version      '2.0.0'
+version      '2.0.1'
 repository   'https://github.com/overextended/ox_lib'
 description  'A library of shared functions to utilise in other resources.'
 

imports/callback/client.lua

@@ -43,7 +43,7 @@ function callback.await(event, delay, ...)
 end
 
 return setmetatable(callback, {
-	__call = function(event, delay, cb, ...)
+	__call = function(self, event, delay, cb, ...)
 		if callbackTimer(event, delay) then
 			event = RegisterNetEvent(triggerCallback(event, ...), function(response)
 				cb(table.unpack(response))