[Core] Enable concurrent connections between nodes #8963

Job	Run time
Check workspace-hack	46s
Validate Restate UI artifact	4s
Build and test (warp-ubuntu-latest-x64-16x)	6m 34s
Create docker image / build-and-push-image	16m 4s
Run SDK-Java integration tests with KafkaIngressNext / Features integration test	6m 15s
Run SDK-Java integration tests / Features integration test	6m 33s
Run SDK-Java integration tests with DisableIdempotencyTable / Features integration test	6m 24s
Run SDK-Java integration tests with InvocationStatusKilled / Features integration test	6m 34s
Run SDK-Go integration tests / Features integration test	3m 37s
Run SDK-Python integration tests / Features integration test	6m 47s
Run SDK-Typescript integration tests / Features integration test	5m 13s
Run SDK-Rust integration tests / Features integration test	5m 45s
	1h 10m 36s

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