Issue 49560 - Add a test case for extract-pemfiles
    
    Description: Add a test case to existing test suite:
    replication/tls_client_auth_repl_test.py
    It should test that replication works with 'on' and 'off'
    values and the default vaue is right.
    
    https://pagure.io/389-ds-base/issue/49560
    
    Reviewed by: wibrown (Thanks!)