CI: "AttributeError: module 'select' has no attribute 'poll'" on windows

[yamt]

although it doesn't seem fatal, it's better to be fixed.

eg.
https://github.com/bytecodealliance/wasm-micro-runtime/actions/runs/17752229385/job/50449098314?pr=4606

Traceback (most recent call last):
  File "D:\a\wasm-micro-runtime\wasm-micro-runtime\tests\wamr-test-suites\wasi-test-script\pipe.py", line 13, in <module>
    p = select.poll()
AttributeError: module 'select' has no attribute 'poll'