*Description*: >When using mTLS for AuthN, RBAC AuthZ should support client certification validation ``` authorization: defaultAction: Deny rules: principal: clientCert: Subject: foo.bar.com URI: http://foo.bar.com ``` [optional *Relevant Links*:] https://github.com/envoyproxy/gateway/issues/2250 https://github.com/envoyproxy/gateway/pull/5310