Allow the `PoolPersisted` integration test to run on Windows.

[eval-exec]

What problem does this PR solve?

Problem Summary: In the current integration test, PoolPersisted is only permitted to be executed on non-Windows platforms, as there is no stop_gracefully implementation for the Node used in the integration test.

What's Changed:

Related changes

• Implement graceful termination for the integration test on the Windows platform.
• Allow PoolPersisted to be executed on Windows.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code ci-runs-only: [ quick_checks,linters ]

Side effects

• None

Release note

None: Exclude this PR from the release note.

[zhangsoledad]

@eval-exec conflicting

[eval-exec]

@eval-exec conflicting

Confilicts resolved. I think this PR is ready to merge