`CacheFetchPolicy.notStaleCachedOrFetched`: added warning to docstring (#1708)
`CacheFetchPolicy.notStaleCachedOrFetched`: added warning to docstring (#1708)

See conversation in https://github.com/RevenueCat/purchases-ios/pull/1608#discussion_r885949055
RevenueCat/purchases-ios,RevenueCat/purchases-ios,RevenueCat/purchases-ios,RevenueCat/purchases-ios,RevenueCat/purchases-ios