benchmark: add eventtarget creation bench

PR-URL: https://github.com/nodejs/node/pull/47774
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>

benchmark/events/eventtarget-creation.js

@@ -0,0 +1,23 @@
+'use strict';
+
+const common = require('../common.js');
+const assert = require('node:assert');
+
+const bench = common.createBenchmark(main, {
+  n: [1e6],
+}, { flags: ['--expose-internals'] });
+
+function main({ n }) {
+  const { EventTarget } = require('internal/event_target');
+
+  let target;
+
+  bench.start();
+  for (let i = 0; i < n; i++) {
+    target = new EventTarget();
+  }
+  bench.end(n);
+
+  // Avoid V8 deadcode (elimination)
+  assert.ok(target);
+}