Build release artifacts

Add iOS XCframework build to release artefacts. #386

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Run time

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Job	Run time
verify-input	11s
build-android (x86_64)	11s
build-docs	5m 46s
build-android (aarch64)	13s
build-source	1m 15s
build-iOS	-1s
test-source	9m 30s
test-docs	37s
	17m 42s