Add support for merge queues

[ZackKanter]

Prerequisites:

• Is the functionality available in the GitHub UI? If so, please provide a link to information about the feature.
  Managing a merge queue

• Is the functionality available through the GitHub API? If the functionality is available, please provide links to the
  API documentation (https://developer.github.com/v3/) as well as the Octokit documentation (https://octokit.github.io/).

Not as far as I can tell.

• If the functionality is not yet available in the API, it would be helpful if you
  contacted support (https://support.github.com/) or posted in the Community Forum (https://github.community/). Please
  include a link to the forum post if you create one or a copy of the response from support.

https://github.com/orgs/community/discussions/56413

New Feature

Please describe the desired new functionality:

Add ability to enable/disable merge queues across an organization.

[TiagoJMartins]

FYI, merge queue configuration is supported through the API albeit GraphQL, not REST.

MergeQueueConfiguration

[fitz-res]

@TiagoJMartins Are you sure that that object allows you to configure/require a merge queue on a repo, and not just configuring a merge queue after it has been enabled?

[jonathanmorley]

Merge Queue REST API just launched today

https://github.blog/changelog/2024-07-31-repository-updates-july-31st-2024/#repository-ruleset-merge-queue-rule-is-now-generally-available

https://docs.github.com/en/rest/repos/rules?apiVersion=2022-11-28#create-a-repository-ruleset:~:text=merge_queue%20object%20Required,a%20merge%20queue