test.test_socket.RDSTest.testPeek hangs indefinitely in docker container

Bug report

Bug description:

Execution of test_socket.RDSTest.testPeek hangs indefinitely in docker container for Python 3.12.10.
Reproduced on ArchLinux, Docker version 28.2.2, official images Ubuntu 18:04 and Ubuntu 24:04.

Steps:

1. Install necessary packages for compilation.
2. Download https://www.python.org/ftp/python/3.12.10/Python-3.12.10.tgz
3. Do 'configure', 'make'. then execute
   ./python -m test test_socket -m test.test_socket.RDSTest.testPeek -v

The test is stuck. There is no error output, just 'testPeek (test.test_socket.RDSTest.testPeek) ...'.
Strace shows that the process waits for an answer from socket.
If you interrupt and rerun the same test - it completes without issues.

Seems to be the same issue as in https://github.com/python/cpython/issues/79428.

CPython versions tested on:

3.13.5

Operating systems tested on:

Linux

在回報的 Docker/Linux 環境中，使用 ./python -m test test_socket -m test.test_socket.RDSTest.testPeek -v 重現掛起問題。從 test.test_socket.RDSTest.testPeek 開始，並將其行為與 issue #79428 進行比較；完成的標準是測試在第一次執行時能可靠地完成，而不會無限期等待。