Request property require_extra_approval_for_unattributed_changes added

What changed

No action needed unless it is required.

Affects repository-rule-pull-request reachable from 9 operations.

Code that sends GitHub's repository-rule-pull-request objects, used by 9 GitHub operations.

Where	Before	After
repository-rule-pull-request.parameters.require_extra_approval_for_unattributed_changes	absent	present

Based on GitHub’s published API specification. How severity is decided.