release 5.6.0 (#1512)

# Improved

- For all payment methods that include input fields for the shopper's
address, the address input fields are now on a separate screen. This
declutters the payment screen to improve user experience.

# Changed

- Custom conformances to
[PaymentMethod](https://adyen.github.io/adyen-ios/5.0.0/documentation/adyen/paymentmethod/)
and
[StoredPaymentMethod](https://adyen.github.io/adyen-ios/5.0.0/documentation/adyen/storedpaymentmethod/)
are now required to be
[Encodable](https://developer.apple.com/documentation/swift/encodable)

# Fixed

- For Apple Pay, when the `allowOnboarding` property of
`ApplePayConfiguration.init` is set to **true**, the onboarding check
now runs correctly.
- In landscape mode, the search bar height no longer expands and
obstructs other visual elements like the issuer list on the screen.
- For stored card payments using Drop-in, the pay button is now enabled
correctly when entering the security code with the [Traditional Chinese
Cantonese keyboard](https://developer.apple.com/forums/thread/741038).

Adyen.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name = 'Adyen'
-  s.version = '5.5.0'
+  s.version = '5.6.0'
   s.summary = "Adyen Components for iOS"
   s.description = <<-DESC
     Adyen Components for iOS allows you to accept in-app payments by providing you with the building blocks you need to create a checkout experience.