The following message is visible on mergify runs:
"The configuration uses the deprecated merge_method attribute of the
queue action in one or more pull_request_rules. It must now be used
under the queue_rules configuration."
With the following warning:
"A brownout is planned on August 26th, 2024.
This option will be removed on September 23rd, 2024."
This change updates the configuration file to comply with the new
format.
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>