Bug #253219 <rdar://104562407> added ApplePayDeferredPaymentRequest, but it relies on SDKs that have [PKDeferredPaymentRequest setFreeCancellationDateTimeZone:]. I'll add a `respondsToSelector` to handle older SDKs.
<rdar://problem/106239467>
Pull request: https://github.com/WebKit/WebKit/pull/11073
Committed 261230@main (633a76e24024): <https://commits.webkit.org/261230@main> Reviewed commits have been landed. Closing PR #11073 and removing active labels.