add note about cert validation

rdap-conformance

@@ -175,7 +175,7 @@ sub check_gtld_conformance {
 	}
 
 	# Implementation Guide - RDAP Protocol - 1.5: The TLS certificate used for the RDAP service SHOULD be issued by a Certificate Authority (CA) trusted by the major browsers and mobile operating systems such as the ones listed in the Mozilla Included CA Certificate List (​https://wiki.mozilla.org/CA:IncludedCAs​). The TLS certificate used for the RDAP service SHOULD be issued by a CA that follows the latest CAB Forum Baseline Requirements (​https://cabforum.org/baseline-requirements-documents​).
-	# TODO - Net::RDAP uses Mozilla::CA which *should* mean that a request sent to an invalid cert will have resulted in an error before we get to this point.
+	pass('Net::RDAP uses Mozilla::CA so to get this far, the server certificate is trusted by a major browser (i.e. Firefox)');
 
 	# Implementation Guide - RDAP Protocol - 1.6: The RDAP server MUST support both​ ​RFC7480​ GET and HEAD types of HTTP methods.
 	my $head = $rdap->ua->request(HEAD($url));