Update ticker field type in HeimdallMessengerData and HeimdallNetworkMessengerData

Heimdall.lua

@@ -271,11 +271,11 @@ local function init()
 	--- Data ---
 	---@class HeimdallMessengerData
 	---@field queue table<string, Message>
-	---@field ticker number?
+	---@field ticker Timer?
 
 	---@class HeimdallNetworkMessengerData
 	---@field queue table<string, Message>
-	---@field ticker number?
+	---@field ticker Timer?
 
 	---@class HeimdallWhoData
 	---@field updateTicker number?