fix anothe CADMIN test

Author: asirko-soft

src/python_testing/TC_CADMIN_1_11.py

@@ -42,7 +42,7 @@
 from chip.ChipDeviceCtrl import CommissioningParameters
 from chip.exceptions import ChipStackError
 from chip.native import PyChipError
-from matter_testing_infrastructure.chip.testing.matter_testing import (MatterBaseTest, TestStep, async_test_body,
+from chip.testing.matter_testing import (MatterBaseTest, TestStep, async_test_body,
                                                                        default_matter_test_main)
 from mobly import asserts