test: replace forEach with for of

PR-URL: https://github.com/nodejs/node/pull/50594
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-webcrypto-sign-verify-hmac.js

@@ -172,10 +172,10 @@ async function testSign({ hash,
 (async function() {
   const variations = [];
 
-  vectors.forEach((vector) => {
+  for (const vector of vectors) {
     variations.push(testVerify(vector));
     variations.push(testSign(vector));
-  });
+  }
 
   await Promise.all(variations);
 })().then(common.mustCall());