ubuntu_qrt_apparmor failed with TypeError: copytree() got an unexpected keyword argument 'ignore_dangling_symlinks'

Issue found on different kernels:
* X-hwe
* B-azure-5.4
* F-oracle5.4

6 tests failed with:
 TypeError: copytree() got an unexpected keyword argument 'ignore_dangling_symlinks'

 ======================================================================
 ERROR: test_libapparmor_testsuite (__main__.ApparmorTestsuites)
 Run libapparmor testsuite
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "./test-apparmor.py", line 1944, in test_libapparmor_testsuite
     self._prepare_source()
   File "./test-apparmor.py", line 1612, in _prepare_source
     ignore_dangling_symlinks=True)
 TypeError: copytree() got an unexpected keyword argument 'ignore_dangling_symlinks'

 ======================================================================
 ERROR: test_libapparmor_testsuite3 (__main__.ApparmorTestsuites)
 Run libapparmor testsuite (with python3)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "./test-apparmor.py", line 1967, in test_libapparmor_testsuite3
     self._prepare_source()
   File "./test-apparmor.py", line 1612, in _prepare_source
     ignore_dangling_symlinks=True)
 TypeError: copytree() got an unexpected keyword argument 'ignore_dangling_symlinks'

 ======================================================================
 ERROR: test_parser_testsuite (__main__.ApparmorTestsuites)
 Run parser regression tests
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "./test-apparmor.py", line 1901, in test_parser_testsuite
     self._prepare_source()
   File "./test-apparmor.py", line 1612, in _prepare_source
     ignore_dangling_symlinks=True)
 TypeError: copytree() got an unexpected keyword argument 'ignore_dangling_symlinks'

 ======================================================================
 ERROR: test_regression_testsuite (__main__.ApparmorTestsuites)
 Run kernel regression tests
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "./test-apparmor.py", line 1780, in test_regression_testsuite
     self._prepare_source()
   File "./test-apparmor.py", line 1612, in _prepare_source
     ignore_dangling_symlinks=True)
 TypeError: copytree() got an unexpected keyword argument 'ignore_dangling_symlinks'

 ======================================================================
 ERROR: test_utils_testsuite (__main__.ApparmorTestsuites)
 Run utils (make check)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "./test-apparmor.py", line 1865, in test_utils_testsuite
     self._prepare_source()
   File "./test-apparmor.py", line 1612, in _prepare_source
     ignore_dangling_symlinks=True)
 TypeError: copytree() got an unexpected keyword argument 'ignore_dangling_symlinks'

 ======================================================================
 ERROR: test_utils_testsuite3 (__main__.ApparmorTestsuites)
 Run utils (make check with python3)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "./test-apparmor.py", line 1877, in test_utils_testsuite3
     self._prepare_source()
   File "./test-apparmor.py", line 1612, in _prepare_source
     ignore_dangling_symlinks=True)
 TypeError: copytree() got an unexpected keyword argument 'ignore_dangling_symlinks'

This change was added in the following commit in qa-regression-testing repo:
commit 1aa2b80c0917fe8d8a46f929e0cdb9c60cec477b
Author: Alex Murray <email address hidden>
Date: Mon Aug 22 16:22:23 2022 +0930

    test-apparmor.py: Handle dangling symlinks in latest sources

    Signed-off-by: Alex Murray <email address hidden>