Use the `VersionedValue` version in etcd metdata store #8000

Job	Run time
Build and test (warp-ubuntu-latest-x64-16x)	1m 37s
Validate Restate UI artifact	3s
Create docker image / build-and-push-image	5m 27s
Run SDK-Go integration tests	0s
Run SDK-Java integration tests	0s
Run SDK-Java integration tests with DisableIdempotencyTable	0s
Run SDK-Java integration tests with InvocationStatusKilled	0s
Run SDK-Java integration tests with KafkaIngressNext	0s
Run SDK-Python integration tests	0s
Run SDK-Rust integration tests	0s
Run SDK-Typescript integration tests	0s
	7m 7s

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