Cancelling 2025-12-17's WG meeting.

Hey folks,

Due to an overabundance of holiday cheer (and therefore an underabundance
of both attendees and topics), it seems prudent to cancel next week's
meeting.

We'll use https://github.com/w3c/webappsec/issues/698 to plan our meeting
in January; please do add your topic suggestions there.

Happy holidays! See y'all in the new year!

-mike