[keystone] Weekly meetings

Hi All, I'm helping the Keystone team get the weekly meetings back on track. [1] I'd like to propose a change to the meeting time slot from Tuesday at 1700 UTC to Tuesday at 1500 UTC to make it a little earlier for our contributors in EMEA. I'll be out next week, so I won't be available to chair the meeting, but I should be back the following week for the August 31 meeting. If there are no objections to this time change, I'll go ahead and propose a change to the meetings repo. Thanks, - Douglas Mendizábal (redrobot) [1] https://meetings.opendev.org/#Keystone_Team_Meeting