Make web ui serving configurable #9408

Job	Run time
Check workspace-hack	54s
Validate Restate UI artifact	4s
Build and test (warp-ubuntu-latest-x64-16x)	9m 2s
Create docker image / build-and-push-image	15m 45s
Run SDK-Java integration tests with InvocationStatusKilled / Features integration test	6m 49s
Run SDK-Java integration tests with DisableIdempotencyTable / Features integration test	6m 56s
Run SDK-Java integration tests / Features integration test	6m 31s
Run SDK-Go integration tests / Features integration test	3m 32s
Run SDK-Java integration tests with KafkaIngressNext / Features integration test	6m 28s
Run SDK-Python integration tests / Features integration test	4m 33s
Run SDK-Typescript integration tests / Features integration test	4m 59s
Run SDK-Rust integration tests / Features integration test	5m 36s
	1h 11m 9s

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