[bug][node] port 30334 conflict when using collatorExternalRelayChain

[BulatSaif]

If you start parachain node with collatorExternalRelayChain:

  collatorExternalRelayChain:
    enabled: true
    relayChainRpcUrls: ["wss://example.com"]

It will show error:

2025-01-02 10:31:34 [Parachain] Can't listen on /ip4/0.0.0.0/tcp/30334 because: Other(Custom { kind: Other, error: Custom { kind: Other, error: Other(Left(Left(Left(Left(Right(Transport(Os { code: 98, kind: AddrInUse, message: "Address already in use" }))))))) } })

Caused by: paritytech/polkadot-sdk#2203 (comment)