Update subprocess.py to 3.14.3 - #7244

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📦 Library Dependencies

The following Lib/ modules were modified. Here are their dependencies:

[x] lib: cpython/Lib/subprocess.py
[x] test: cpython/Lib/test/test_subprocess.py (TODO: 4)

dependencies:

• subprocess

dependent tests: (54 tests)

• subprocess: test_android test_asyncio test_atexit test_audit test_bz2 test_c_locale_coercion test_cmd_line test_cmd_line_script test_ctypes test_dtrace test_faulthandler test_file_eintr test_gzip test_inspect test_json test_launcher test_msvcrt test_ntpath test_os test_osx_env test_platform test_plistlib test_poll test_py_compile test_regrtest test_repl test_runpy test_script_helper test_select test_shutil test_signal test_site test_sqlite3 test_subprocess test_support test_sys test_sysconfig test_tempfile test_threading test_unittest test_urllib2 test_utf8_mode test_venv test_wait3 test_webbrowser test_zipfile
  • asyncio: test_asyncio test_contextlib_async test_logging test_sys_settrace test_unittest
  • ctypes.util: test_ctypes
  • ensurepip: test_ensurepip
  • multiprocessing.util: test_concurrent_futures

Legend:

• [+] path exists in CPython
• [x] up-to-date, [ ] outdated

Code has been automatically formatted

The code in this PR has been formatted using:

• ruff format
  Please pull the latest changes before pushing again:

git pull origin update-subprocess