[Fix][Zeta] If Zeta not a TCP discovery, it cannot find other members

[loustler]

Purpose of this pull request

Fix a bug in SeaTunnelNodeContext, please see #7750.

It resolved #7754

Does this PR introduce any user-facing change?

NO

How was this patch tested?

Packaged the sea tunnel-starter.jar, place it it in a docker image

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config
• Update the release-note.

[loustler]

@Hisoka-X @liunaijie
I'll add a test case for it later

[Hisoka-X]

Thanks @loustler ! Waiting test case.

[loustler]

@Hisoka-X @liunaijie
A new test case is passed.
Please review this

[Hisoka-X]

Thanks @loustler!