[Core] Enable concurrent connections between nodes #8968

Job	Run time
Build and test (warp-ubuntu-latest-x64-16x)	6m 30s
Check workspace-hack	46s
Validate Restate UI artifact	6s
Create docker image / build-and-push-image	16m 2s
Run SDK-Java integration tests with DisableIdempotencyTable / Features integration test	6m 23s
Run SDK-Java integration tests / Features integration test	6m 36s
Run SDK-Java integration tests with KafkaIngressNext / Features integration test	6m 52s
Run SDK-Java integration tests with InvocationStatusKilled / Features integration test	6m 28s
Run SDK-Python integration tests / Features integration test	7m 26s
Run SDK-Go integration tests / Features integration test	4m 2s
Run SDK-Rust integration tests / Features integration test	6m 13s
Run SDK-Typescript integration tests / Features integration test	5m 24s
	1h 12m 48s

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