add show_meeting_attendees attribute to mock data

Need to add this to support new functionality in LFX One which will show
meeting attendees some details about other meeting attendees.

Signed-off-by: Jordan Evans <[email protected]>

Author: jordane

playbooks/v1_meetings/umbrella_board_meeting/board_meeting.yaml

@@ -132,6 +132,7 @@ buf_board_meeting_create:
           ai_summary_access: public
           # 6-digit numeric passcode.
           passcode: "{{ fake.pyint(min_value=100000, max_value=999999) }}"
+          show_meeting_attendees: true
 
 buf_board_meeting_access_update:
   type: nats-publish