test(NODE-7190): Migrate test/integration/crud/promise_stats tests (mongodb#4708)

Co-authored-by: bailey <[email protected]>

Author: PavelSafronov

test/integration/crud/promise_stats.test.js

@@ -0,0 +1,21 @@
+import { expect } from 'chai';
+
+import { type MongoClient } from '../../../src';
+
+describe('stats', function () {
+  let client: MongoClient;
+
+  beforeEach(async function () {
+    client = this.configuration.newClient();
+    await client.connect();
+  });
+
+  afterEach(async function () {
+    await client.close();
+  });
+
+  it('correctly executes stats()', async function () {
+    const stats = await client.db('foo').stats();
+    expect(stats).not.to.be.null;
+  });
+});