Merge branch 'PHP-8.3' into PHP-8.4

* PHP-8.3:
  Fix error message for newer libxml
  Backport 061058a: Test fixes for libxml2 2.12.0
  Workaround deprecation warning in zend_test on 8.1
  Backport 3ec5919: Update error message for libxml 2.13
  Backport f74f9b0: Update libxml test for the directory field behaviour change
  Backport 4fe8213: Backport libxml2 2.13.2 fixes (#14816)
  Backport e2d9731: Backport deprecation warning ignores to unbreak CI
  Backport 0a39890: Fix libxml2 2.12 build due to API breaks

Author: nielsdos