onnxruntime

8e871c89 - Update mac.yml iphone_simulator job to use Xcode version 16.4. (#25752)

Update mac.yml iphone_simulator job to use Xcode version 16.4. (#25752) ### Description <!-- Describe your changes. --> Update mac.yml iphone_simulator job to use Xcode version 16.4. ### Motivation and Context <!-- - Why is this change required? What problem does it solve? - If it fixes an open issue, please link to the issue here. --> Fix CI build failure. Following the recommendation here: https://github.com/actions/runner-images/issues/12758#issuecomment-3187480561