lib: fix typo in lib/internal/crypto/certificate.js

'referred' was spelled as 'refered'

PR-URL: #37741
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Pooja D P <Pooja.D.P@ibm.com>

lib/internal/crypto/certificate.js

@@ -11,7 +11,7 @@ const {
 } = require('internal/crypto/util');
 
 // The functions contained in this file cover the SPKAC format
-// (also refered to as Netscape SPKI). A general description of
+// (also referred to as Netscape SPKI). A general description of
 // the format can be found at https://en.wikipedia.org/wiki/SPKAC
 
 function verifySpkac(spkac, encoding) {