New/Set-GitHubRepository: Add Support for 'Allow Update Branch' Option

[X-Guardian]

Feature Idea Summary

GitHub have added a new option to always have the option to update a pull request branch for a repository. This should be added to the New-GitHubRepository and Set-GitHubRepository Cmdlets.

Feature Idea Additional Details

References:

• More ways to keep your pull request branch up-to-date
• Managing suggestions to update pull request branches

API Reference

• https://docs.github.com/en/rest/repos/repos#create-an-organization-repository
• https://docs.github.com/en/rest/repos/repos#update-a-repository

Parameters

• allow_update_branch

Requested Assignment

• If possible, I would like to implement this.