Update server/util-server.js

Co-authored-by: Adam Stachowicz <saibamenppl@gmail.com>

server/util-server.js

@@ -654,7 +654,7 @@ const parseCertificateInfo = function (info) {
 /**
  * Check if certificate is valid
  * @param {tls.TLSSocket} socket TLSSocket, which may or may not be connected
- * @returns {Object} Object containing certificate information
+ * @returns {object} Object containing certificate information
  */
 exports.checkCertificate = function (socket) {
     let certInfoStartTime = dayjs().valueOf();