XEP-0401 got update 0.6.0 with clarifications

[badlop]

XEP-0401: Ad-hoc Account Invitation Generation got this update three months ago:

Version [0.6.0](https://xmpp.org/extensions/attic/xep-0401-0.6.0.html) (2026-03-08)
Clarify normative elements (command name, mandatory field names and types)

The changes since the previous XEP version are:

• https://services.w3.org/htmldiff?doc1=https%3A%2F%2Fxmpp.org%2Fextensions%2Fattic%2Fxep-0401-0.5.0.html&doc2=https%3A%2F%2Fxmpp.org%2Fextensions%2Fattic%2Fxep-0401-0.6.0.html
• https://github.com/xsf/xeps/commits/master/xep-0401.xml

Some of the changes may be already included in mod_invites, and others may not.

[sstrigler]

Can look into it after summer.