ipa-pki-proxy.conf: provide access to /kra/admin/kra/getStatus
    
    The access to /kra/admin/kra/getStatus will be needed
    in order to fix pki-healthcheck.
    Note that this commit is a pre-requisite for the fix
    to be done on PKI side. No test added since the full
    integration test already exists in test_replica_promotion.py,
    in TestHiddenReplicaPromotion::test_ipahealthcheck_hidden_replica
    
    Fixes: https://pagure.io/freeipa/issue/9099
    Related: https://pagure.io/freeipa/issue/8582
    
    Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>