Update changelog and version metadata for iOS 2023.7 #8427

Job	Run time
Prepare	3s
Generate relay list	2m 36s
Build native (x86_64, x86_64, x86_64-linux-android)	3m 36s
Build native (i686, x86, i686-linux-android)	3m 41s
Build native (aarch64, arm64-v8a, aarch64-linux-android)	3m 36s
Build native (armv7, armeabi-v7a, armv7-linux-androideabi)	3m 50s
Build app and run unit tests	12m 0s
Run instrumented tests (app)	4m 55s
Run instrumented tests (mockapi)	1m 11s
Run instrumented firebase tests	0s
	35m 28s

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