test: refactor http-https-default-ports

Use arrow functions.

PR-URL: #19130
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

test/internet/test-http-https-default-ports.js

@@ -30,10 +30,10 @@ const https = require('https');
 
 const http = require('http');
 
-https.get(`https://${addresses.INET_HOST}/`, common.mustCall(function(res) {
+https.get(`https://${addresses.INET_HOST}/`, common.mustCall((res) => {
   res.resume();
 }));
 
-http.get(`http://${addresses.INET_HOST}/`, common.mustCall(function(res) {
+http.get(`http://${addresses.INET_HOST}/`, common.mustCall((res) => {
   res.resume();
 }));