test_build_details fails if executed from a relocated place

Bug report

Bug description:

[2025-05-08T15:36:07.483Z] 0:00:57 load avg: 32.60 [ 90/491/1] test_bool passed
[2025-05-08T15:36:07.747Z] 0:00:57 load avg: 32.60 [ 91/491/2] test_build_details failed (1 failure)
[2025-05-08T15:36:07.747Z] test_base_interpreter (test.test_build_details.CPythonBuildDetailsTests.test_base_interpreter) ... FAIL
[2025-05-08T15:36:07.747Z] test_base_prefix (test.test_build_details.CPythonBuildDetailsTests.test_base_prefix) ... ok
[2025-05-08T15:36:07.747Z] test_implementation (test.test_build_details.CPythonBuildDetailsTests.test_implementation) ... ok
[2025-05-08T15:36:07.747Z] test_language_version (test.test_build_details.CPythonBuildDetailsTests.test_language_version) ... ok
[2025-05-08T15:36:07.747Z] test_language_version_info (test.test_build_details.CPythonBuildDetailsTests.test_language_version_info) ... ok
[2025-05-08T15:36:07.747Z] test_location (test.test_build_details.CPythonBuildDetailsTests.test_location) ... ok
[2025-05-08T15:36:07.747Z] test_parse (test.test_build_details.CPythonBuildDetailsTests.test_parse) ... ok
[2025-05-08T15:36:07.747Z] test_platform (test.test_build_details.CPythonBuildDetailsTests.test_platform) ... ok
[2025-05-08T15:36:07.747Z] test_top_level_container (test.test_build_details.CPythonBuildDetailsTests.test_top_level_container) ... ok
[2025-05-08T15:36:07.747Z] 
[2025-05-08T15:36:07.747Z] ======================================================================
[2025-05-08T15:36:07.747Z] FAIL: test_base_interpreter (test.test_build_details.CPythonBuildDetailsTests.test_base_interpreter)
[2025-05-08T15:36:07.747Z] ----------------------------------------------------------------------
[2025-05-08T15:36:07.747Z] Traceback (most recent call last):
[2025-05-08T15:36:07.747Z]   File "/bb/jenkins_work/python/workspace/python_python3.14-debian_PR-1/distro/refroot/amd64/opt/bb/lib64/python3.14/test/test_build_details.py", line 124, in test_base_interpreter
[2025-05-08T15:36:07.747Z]     self.assertEqual(os.path.realpath(value), os.path.realpath(sys.executable))
[2025-05-08T15:36:07.747Z]     ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[2025-05-08T15:36:07.747Z] AssertionError: '/bb/bin/package/opt/bb/bin/python3.14' != '/bb/jenkins_work/python/workspace/python_pyth[57 chars]3.14'
[2025-05-08T15:36:07.747Z] - /bb/bin/package/opt/bb/bin/python3.14
[2025-05-08T15:36:07.747Z] + /bb/jenkins_work/python/workspace/python_python3.14-debian_PR-1/distro/refroot/amd64/opt/bb/bin/python3.14
[2025-05-08T15:36:07.747Z] 
[2025-05-08T15:36:07.747Z] 
[2025-05-08T15:36:07.747Z] ----------------------------------------------------------------------
[2025-05-08T15:36:07.747Z] Ran 9 tests in 0.013s```


### CPython versions tested on:

3.14

### Operating systems tested on:

Linux

Bắt đầu với test/test_build_details.py, đặc biệt là CPythonBuildDetailsTests.test_base_interpreter, và tái hiện lỗi khi Python được thực thi từ một bản cài đặt đã được di chuyển. Kiểm tra cách test lấy và so sánh các đường dẫn của trình thông dịch cơ sở. Được xem là hoàn tất khi test_build_details chạy đạt trong kịch bản vị trí đã được di chuyển mà không làm hỏng các test khác được liệt kê.