chore(cli): Migrate some unit tests to "Promise.withResolvers()" (#21128)

Migrate to use `Promise.withResolvers()` instead of `deferred` in some
of the tests in `cli/tests/unit/`.
Issue: #21041 

1 files changed, 3 insertions, 8 deletions

diff --git a/cli/tests/unit/kv_queue_test_no_db_close.ts b/cli/tests/unit/kv_queue_test_no_db_close.ts
index e639574a3..33cb3aabf 100644
--- a/cli/tests/unit/kv_queue_test_no_db_close.ts
+++ b/cli/tests/unit/kv_queue_test_no_db_close.ts
@@ -1,21 +1,16 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-import {
-  assert,
-  assertEquals,
-  assertNotEquals,
-  deferred,
-} from "./test_util.ts";
+import { assert, assertEquals, assertNotEquals } from "./test_util.ts";
 
 Deno.test({
   sanitizeOps: false,
   sanitizeResources: false,
 }, async function queueTestNoDbClose() {
   const db: Deno.Kv = await Deno.openKv(":memory:");
-  const promise = deferred();
+  const { promise, resolve } = Promise.withResolvers<void>();
   let dequeuedMessage: unknown = null;
   db.listenQueue((msg) => {
     dequeuedMessage = msg;
-    promise.resolve();
+    resolve();
   });
   const res = await db.enqueue("test");
   assert(res.ok);