[net-im/wync-bin] Version bump to 2.0.173

Upstream ChangeLog:
Improved: Add configuration for chat tabs
Fixed: Crash bug related to special group name
Fixed: Crash bug when receiving a message from group chat
Fixed: Search bug
Fixed: Bug related to updating note status
Fixed: Bug related to microphone level settings
Fixed: Bug related to receving shared desktop

Package-Manager: portage-2.2.12