test: replaced anonymous fn with arrow syntax

PR-URL: https://github.com/nodejs/node/pull/26029
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/addons/async-hooks-id/test.js

@@ -14,7 +14,7 @@ assert.strictEqual(
   async_hooks.triggerAsyncId()
 );
 
-process.nextTick(common.mustCall(function() {
+process.nextTick(common.mustCall(() => {
   assert.strictEqual(
     binding.getExecutionAsyncId(),
     async_hooks.executionAsyncId()