net-im/gloox: Update to 1.0.24

From ChangeLog: https://camaya.net/gloox/changelog/
Accumulated changes:

• Tag: fixed XML namespace for attribute with empty namespace
• PubSub::Event: add simple ctor
• PubSub::Manager: fixed subscription error case handling
• PubSub: fixed support for instant nodes
• RosterManager: fixed behavior if subscription attribute is absent in roster item
• fixed a memory leak in dns.cpp
• fixed session management/stream resumption
• MUCRoom::MUCUser: include reason if set
• ClientBase: fix honorThreadID (first noticed by Erik Johansson in 2010)
• TLSGnuTLS: disabled TLS 1.3 for now, as there are connection issues with it

PR: 248080
Submitted by: marcel@herrbischoff.com