[MM-44790] fix the external link warning

templates/email_change_verify_body.html

@@ -101,7 +101,7 @@
                                                         <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="border-collapse:separate;line-height:100%;">
                                                             <tr>
                                                                 <td align="center" bgcolor="#FFFFFF" role="presentation" style="border:none;border-radius:4px;cursor:auto;mso-padding-alt:10px 25px;background:#FFFFFF;" valign="middle">
-                                                                    <a href="{{.Props.VerifyUrl}}" style="display: inline-block; background: #FFFFFF; font-family: Open Sans, sans-serif; margin: 0; text-transform: none; mso-padding-alt: 0px; border-radius: 4px; text-decoration: none; background-color: #1C58D9; font-weight: 600; font-size: 16px; line-height: 18px; color: #FFFFFF; padding: 15px 24px;" target="_blank">
+                                                                    <a rel="noopener noreferrer" href="{{.Props.VerifyUrl}}" style="display: inline-block; background: #FFFFFF; font-family: Open Sans, sans-serif; margin: 0; text-transform: none; mso-padding-alt: 0px; border-radius: 4px; text-decoration: none; background-color: #1C58D9; font-weight: 600; font-size: 16px; line-height: 18px; color: #FFFFFF; padding: 15px 24px;" target="_blank">
                                                                         {{.Props.VerifyButton}}
                                                                     </a>
                                                                 </td>