Move MetadataKind from node.proto to common.proto #7982

Job	Run time
Build and test (warp-ubuntu-latest-x64-16x)	9m 38s
Validate Restate UI artifact	3s
Create docker image / build-and-push-image	13m 21s
Run SDK-Java integration tests with DisableIdempotencyTable / Features integration test	6m 13s
Run SDK-Java integration tests with InvocationStatusKilled / Features integration test	6m 27s
Run SDK-Java integration tests / Features integration test	6m 25s
Run SDK-Java integration tests with KafkaIngressNext / Features integration test	6m 42s
Run SDK-Python integration tests / Features integration test (sdk-test-suite version 2.0)	5m 55s
Run SDK-Typescript integration tests / Features integration test (sdk-test-suite version 2.1)	4m 16s
Run SDK-Rust integration tests / Features integration test (sdk-test-suite version 2.0)	5m 14s
Run SDK-Go integration tests / Features integration test (sdk-test-suite version 2.1)	2m 42s
	1h 6m 56s

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