[PassKit] Add support Xcode15 Beta 7#19139

Merged

tj-devel709 merged 5 commits intodotnet:mainfrom

tj-devel709:Xcode15-PassKit-Beta7

Oct 23, 2023

Commits on Oct 16, 2023

Changes for PassKit Xcode15
tj_devel709
committed

Commits on Oct 17, 2023

make static, add intro ignore
tj_devel709
committed

Commits on Oct 18, 2023

add nullable to weak delegate and better NSString
tj_devel709
committed

Commits on Oct 19, 2023

comment out PKPayLaterValidateAmount bits until Apple replies
tj_devel709
committed

Commits on Oct 20, 2023

remove the xamcore5 nullability removal
tj_devel709
committed