Fix flaky ServerStatusManagerIntegrationTest (2)

[ikhoon]

Motivation:

This PR tries to solve the flakiness of ServerStatusManagerIntegrationTest in a different way. See #948

This workaround minimizes port collisions by ensuring that all ports are available when a Central Dogma cluster starts.

Modifications:

• Check if all ports are open when restarting CentralDogmaReplicationExtension.

Result:

Less flakiness