Add fresh test recordings for all three safeguards tests

Generated new recording files by running all three tests together in live mode:
- test_aks_deployment_safeguards_basic.yaml (212KB)
- test_aks_deployment_safeguards_argument_validation.yaml (164KB)
- test_aks_deployment_safeguards_with_pss.yaml (240KB)

All recordings reflect the corrected code with duplicate checking in custom class.

Author: Jenny Liu