[New Feature]: Prevent `Author-Not-Authorized` for wingetbot's Automatic Waiver PR

[KarbitsCode]

Description of the new feature/enhancement

I noticed for a long time that wingetbot's Automatic Waiver PRs keeps getting Author-Not-Authorized label (e.g. #324745). This doesn't happened before and only started around March 18 of this year.

Proposed technical implementation details (optional)

I found out the configuration that applies this label:

winget-pkgs/.github/policies/labelManagement.issueOpened.yml

Lines 198 to 214 in 4f1d988

	- description: >-
	When a PR is opened/updated, if the content contains .validation and user is not repo admin
	* Add Author-Not-Authorized label
	if:
	- payloadType: Pull_Request
	- isOpen
	- not:
	filesMatchPattern:
	pattern: ^$
	- filesMatchPattern:
	pattern: ^.*\.validation
	- not:
	activitySenderHasPermission:
	permission: Admin
	then:
	- addLabel:
	label: Author-Not-Authorized

Maybe this because of wingetbot is not repo admin anymore? I guess it's possible add an exception to wingetbot in here.