chore(ci): Update runner image

[nan-li]

Description

One Line Summary

On macos-latest-largest, use xcode 16.3+.

Details

Motivation

Fix CI

Scope

CI

Testing

Manual testing

Confirmed CI works after this

Affected code checklist

• Notifications
  • Display
  • Open
  • Push Processing
  • Confirm Deliveries
• Outcomes
• Sessions
• In-App Messaging
• REST API requests
• Public API changes

Checklist

Overview

• I have filled out all REQUIRED sections above
• PR does one thing
• Any Public API changes are explained in the PR details and conform to existing APIs - NONE

Testing

• I have included test coverage for these changes, or explained why they are not needed - NOT NEEDED
• All automated tests pass, or I explained why that is not possible
• I have personally tested this on my device, or explained why that is not possible

Final pass

• Code is as readable as possible.
• I have reviewed this PR myself, ensuring it meets each checklist item

---

This change is