NVDA 2024.1 compatibility

Set the "Last NVDA version supported/tested" into NVDA 2024.1.
Also, update it in "manifest.ini" and then release it as Dual Voice 5.3

addon/globalPlugins/dual_voice_globalPlugin/__init__.py

@@ -1,6 +1,6 @@
 # -*- coding: UTF-8 -*-
 # A part of Dual Voice for NVDA
-# Copyright (C) 2015-2021 Seyed Mahmood Taghavi Shahri
+# Copyright (C) 2015-2024 Seyed Mahmood Taghavi Shahri
 # https://mahmood-taghavi.github.io/dual_voice/
 # This file is covered by the GNU General Public License version 3.
 # See the file COPYING for more details.
@@ -32,7 +32,7 @@ def createMenu(self):
 		self.submenu_item = gui.mainFrame.sysTrayIcon.menu.InsertMenu(2, wx.ID_ANY, _('Dual &voice'), self.submenu_dualvoice)
 
 	def onAbout(self, event):
-		gui.messageBox('Version 5.2 by Seyed Mahmood Taghavi-Shahri, Iran', _('About the Dual voice add-on for NVDA'), wx.OK)
+		gui.messageBox('Version 5.3 by Seyed Mahmood Taghavi-Shahri, Iran', _('About the Dual voice add-on for NVDA'), wx.OK)
 
 	def onCheckUpdate(self, event):
 		webbrowser.open("https://mahmood-taghavi.github.io/dual_voice/")