[iOS] Bump up the cocoapods version (#45862)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45862
Bump up the cocoapods version
ghstack-source-id: 113585513
(Note: this ignores all push blocking failures!)
Test Plan: CI
Reviewed By: xta0
Differential Revision: D24119158
fbshipit-source-id: e689b69628dcf802084e67c5ea627220cafcc575
