OPENSUSE-SU-2026:21277-1 Security update for go-sendxmpp

This update for go-sendxmpp fixes the following issues: Changes in go-sendxmpp: - Update to 0.16.0: Added: Add Ox support to http-upload. Add Ox support for private group chats. Show error cause if joining MUCs failedi requires go-xmpp = v0.3.5. Changed: Fix --ox-delete-nodes. Fix receiving of 1-...