respect custom keyUsage

Author: slobodanadamovic

x-pack/plugin/security/cli/src/main/java/org/elasticsearch/xpack/security/cli/HttpCertificateCommand.java

@@ -353,7 +353,7 @@ private void writeCertificateAndKeyDetails(
                     keyPair,
                     cert.subject,
                     sanList,
-                    buildKeyUsage(DEFAULT_CERT_KEY_USAGE),
+                    buildKeyUsage(cert.keyUsage),
                     Set.of(new ExtendedKeyUsage(KeyPurposeId.id_kp_serverAuth))
                 );
                 final String csrFile = "http-" + cert.name + ".csr";
@@ -387,7 +387,7 @@ private void writeCertificateAndKeyDetails(
                     notBefore,
                     notAfter,
                     null,
-                    buildKeyUsage(DEFAULT_CERT_KEY_USAGE),
+                    buildKeyUsage(cert.keyUsage),
                     Set.of(new ExtendedKeyUsage(KeyPurposeId.id_kp_serverAuth))
                 );