[barbican] New team meeting time

Hi Team,

At our last meeting, it was proposed to move the meeting forward 1 hour (an hour early), from 1300 to 1200 UTC. [1] If there are no objections, I'll be making the change by the end of the week, before the next meeting takes place.

/ Greg

[1] https://meetings.opendev.org/meetings/barbican/2022/barbican.2022-10-04-13.0...