test_builtin.ImmortalTests.test_immortals tests are not so immortal on i586 and 3.14.0a3

Bug report

Bug description:

All test_builtin.ImmortalTests.test_immortals tests fail on openSUSE/Factory in 3.14.0a3 on i586 (32bit) platform with this error:

[ 1122s] ======================================================================
[ 1122s] FAIL: test_immortals (test.test_builtin.ImmortalTests.test_immortals) [None]
[ 1122s] ----------------------------------------------------------------------
[ 1122s] Traceback (most recent call last):
[ 1122s]   File "/home/abuild/rpmbuild/BUILD/Python-3.14.0a3/Lib/test/test_builtin.py", line 2702, in assert_immortal
[ 1122s]     self.assertEqual(sys.getrefcount(immortal), self.IMMORTAL_REFCOUNT)
[ 1122s]     ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ 1122s] AssertionError: 1342177280 != 1879048192

Complete build log with all details of packages used and steps taken to reproduce.

CPython versions tested on:

3.14

Operating systems tested on:

Linux

Start with Lib/test/test_builtin.py around line 2702 and the failing ImmortalTests.test_immortals assertion. Review the linked complete build log for the i586 environment and determine why the observed refcount differs from the expected value; done means the immortal tests pass on the reported 32-bit Python 3.14 build.