`Configuration.with(usesStoreKit2IfAvailable:)`: removed "experimental" warning (#1845)
`Configuration.with(usesStoreKit2IfAvailable:)`: removed "experimental" warning (#1845)

Fixes [CSDK-418].
RevenueCat/purchases-ios,RevenueCat/purchases-ios,RevenueCat/purchases-ios,RevenueCat/purchases-ios,RevenueCat/purchases-ios