feat!: remove support for React Native old architecture (#553) #986

Job	Run time
Building the iOS APN sample app / Building iOS APN sample app with SDK version	14m 11s
Building the Android APN sample app / Building Android APN sample app with SDK version	23m 39s
Building the iOS FCM sample app / Building iOS FCM sample app with SDK version	13m 21s
update-pr-comment	-8s
update-pr-comment-with-status	0s
	51m 3s

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