[Fix][Zeta] change parallelStream to stream in SeaTunnelTask to avoid classloader mismatch

[sohurdc]

Purpose of this pull request

parallelStream may broken the binding of task and classloader, change to stream to avoid the problem.

Does this PR introduce any user-facing change?

no

How was this patch tested?

no

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

[Copilot]

Pull Request Overview

This pull request removes the use of parallelStream in favor of a sequential stream to prevent task and classloader binding issues.

• Replaces parallelStream() with stream() in the SeaTunnelTask class.
• Aims to resolve binding issues noted in the PR description.

Comments suppressed due to low confidence (1)

seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/task/SeaTunnelTask.java:301

• Switching from parallelStream to stream could impact performance when processing large collections. It is recommended to validate that the sequential processing meets the performance requirements for this task.

MDCTracer.tracing(allCycles.stream())

[Hisoka-X]

Thanks @sohurdc for raise this pr.

parallelStream may broken the binding of task and classloader

Could you share more information about why it could happend?

I got it. The classloader corresponding to the default thread pool used by parallelStream is not what we need.

[Hisoka-X]

LGTM.