test.test_concurrent_futures.test_deadlock test_pyrepl failed on 1-core-VM

Bug report

Bug description:

While working on reproducible builds for openSUSE (sponsored by the NLnet NGI0 fund), I found that our python313 package fails to build on 1-core-VMs from two failing tests.

Full build log: https://rb.zq1.de/other/python313/build-j1.log

2 re-run tests:
    test.test_concurrent_futures.test_deadlock test_pyrepl

2 tests failed:
    test.test_concurrent_futures.test_deadlock test_pyrepl

447 tests OK.

Total duration: 3 hour 35 sec
Total tests: run=42,874 (filtered) failures=7 skipped=1,745
Total test files: run=466/468 (filtered) failed=2 skipped=15 resource_denied=4 rerun=2

If those tests cannot pass in such an env, they should be skipped automatically.

CPython versions tested on:

3.13

Operating systems tested on:

Linux

首先檢查連結的建置記錄，並在單核心 Linux VM 上重現 test.test_concurrent_futures.test_deadlock 和 test_pyrepl。確認這些失敗是否只發生在單核心環境，然後讓受影響的測試在該環境中自動略過；當測試在該環境中不再失敗，且更廣泛的測試執行仍然有效時，即表示完成。