Also set xcode back to xcode 13 for iOS 14.
Change-Id: Ic5475d274895b5f86e4fea36805dec4486adc79b
Bug: b/264630045
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/290894
Commit-Queue: Jeremy Leconte <jleconte@google.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39094}