MT#58356 Update packaging for bookworm

- Add Rules-Requires-Root field.
- Switch to Standards-Version 4.6.2.
- Update copyright years.

Change-Id: Ia039a0c764700d6ed2826504dc3bf133c3b9e68f

debian/control

@@ -3,7 +3,8 @@ Priority: optional
 Section: comm
 Maintainer: Sipwise Development Team <support@sipwise.com>
 Homepage: https://www.sipwise.com/
-Standards-Version: 4.5.1
+Standards-Version: 4.6.2
+Rules-Requires-Root: no
 Build-Depends:
  asterisk-dev,
  debhelper-compat (= 13),

debian/copyright

@@ -3,7 +3,7 @@ Source: https://github.com/sipwise/asterisk-voicemail.git
 Upstream-Name: ngcp-asterisk-voicemail
 
 Files: *
-Copyright: 2013-2021 Sipwise GmbH, Austria
+Copyright: 2013-2023 Sipwise GmbH, Austria
 License: GPL-2
 
 Files: apps/app_voicemail.c