Package python-lxml fails to build from source in Fedora Rawhide.

Version-Release number of selected component:
4.9.3-3.fc40

Reproducible: Always

Steps to Reproduce:
1. fedpkg build --scratch

Actual Results:  
======================================================================
FAIL: test_illegal_utf8_recover (lxml.tests.test_unicode.EncodingsTestCase.test_illegal_utf8_recover)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python3.12/unittest/case.py", line 58, in testPartExecutor
    yield
  File "/usr/lib64/python3.12/unittest/case.py", line 634, in run
    self._callTestMethod(testMethod)
  File "/usr/lib64/python3.12/unittest/case.py", line 589, in _callTestMethod
    if method() is not None:
       ^^^^^^^^
  File "/builddir/build/BUILD/lxml-4.9.3/src/lxml/tests/test_unicode.py", line 170, in test_illegal_utf8_recover
    self.assertRaises(etree.XMLSyntaxError, etree.fromstring, data, parser)
  File "/usr/lib64/python3.12/unittest/case.py", line 778, in assertRaises
    return context.handle('assertRaises', args, kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.12/unittest/case.py", line 237, in handle
    with self:
  File "/usr/lib64/python3.12/unittest/case.py", line 260, in __exit__
    self._raiseFailure("{} not raised by {}".format(exc_name,
  File "/usr/lib64/python3.12/unittest/case.py", line 200, in _raiseFailure
    raise self.test_case.failureException(msg)
AssertionError: XMLSyntaxError not raised by fromstring
----------------------------------------------------------------------
Ran 1943 tests in 6.072s
FAILED (failures=1)

Expected Results:  
All tests pass.

This package is tracked by Koschei. See:
https://koschei.fedoraproject.org/package/python-lxml

The first failed build updated libxml2 from 2.11.5 to 2.12.0.