test: Replaced forEach with for..of in test-net-isipv4.js

Author: niyashiyas

test/parallel/test-net-isipv4.js

@@ -37,10 +37,10 @@ const v4not = [
   '192.168.0.2000000000',
 ];
 
-v4.forEach((ip) => {
+for(const ip of v4) {
   assert.strictEqual(net.isIPv4(ip), true);
-});
+};
 
-v4not.forEach((ip) => {
+for(const ip of v4not) {
   assert.strictEqual(net.isIPv4(ip), false);
-});
+};