Add Local Payment Privacy Manifest

[KunJeongPark]

Summary of changes

• Added PrivacyInfo.xcprivacy file to BraintreeLocalPayment module
• ModifiedBraintree.podspec and Package.swift files

Privacy Report generated from Demo app:

Demo-PrivacyReport 2024-03-13 12-45-03.pdf

Checklist

~- [ ] Added a changelog entry~

Authors

List GitHub usernames for everyone who contributed to this pull request.

• @KunJeongPark