[Improve][Zeta] Make sure the local mode CompletableFuture behavior same as server mode

[Hisoka-X]

Purpose of this pull request

Make sure the local mode CompletableFuture behavior same as server mode, we should set our own EXECUTOR to hazelcast same as server mode in https://github.com/apache/seatunnel/blob/dev/seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/SeaTunnelServerStarter.java#L59

Does this PR introduce any user-facing change?

no

How was this patch tested?

exist test.

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.

[Carl-Zhou-CN]

+1