Update React.podspec to require cocoapods >= 1.10.1 (#31134)

Summary:
According to https://github.com/facebook/react-native/issues/30922#issuecomment-778700328
Cocoapods 1.10.1 is required to compile iOS deps (OpenSSL).

Fixes https://github.com/facebook/react-native/issues/30922#issuecomment-778700328

Changelog:
[iOS][Changed] - Update React.podspec to require cocoapods >= 1.10.1

Pull Request resolved: https://github.com/facebook/react-native/pull/31134

Reviewed By: fkgozali

Differential Revision: D27447225

Pulled By: hramos

fbshipit-source-id: 3429250597e3eff58272dc880dbc3e7c38dcb70e