Bump undici from 6.21.0 to 6.21.1 in /tests in the npm_and_yarn group across 1 directory (#2580)

Bumps the npm_and_yarn group with 1 update in the /tests directory:
[undici](https://github.com/nodejs/undici).

Updates `undici` from 6.21.0 to 6.21.1
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/nodejs/undici/releases">undici's
releases</a>.</em></p>
<blockquote>
<h2>v6.21.1</h2>
<h1>⚠️ Security Release ⚠️</h1>
<p>Fixes CVE CVE-2025-22150 <a
href="https://github.com/nodejs/undici/security/advisories/GHSA-c76h-2ccp-4975">https://github.com/nodejs/undici/security/advisories/GHSA-c76h-2ccp-4975</a>
(embargoed until 22-01-2025).</p>
<h2>What's Changed</h2>
<ul>
<li>fix(<a
href="https://redirect.github.com/nodejs/undici/issues/3736">#3736</a>):
back-port 183f8e9 to v6.x by <a
href="https://github.com/ggoodman"><code>@​ggoodman</code></a> in <a
href="https://redirect.github.com/nodejs/undici/pull/3855">nodejs/undici#3855</a></li>
<li>fix(<a
href="https://redirect.github.com/nodejs/undici/issues/3817">#3817</a>):
send servername for SNI on TLS (<a
href="https://redirect.github.com/nodejs/undici/issues/3821">#3821</a>)
[backport] by <a
href="https://github.com/metcoder95"><code>@​metcoder95</code></a> in <a
href="https://redirect.github.com/nodejs/undici/pull/3864">nodejs/undici#3864</a></li>
<li>fix: sending formdata bodies with http2 (<a
href="https://redirect.github.com/nodejs/undici/issues/3863">#3863</a>)
[backport] by <a
href="https://github.com/metcoder95"><code>@​metcoder95</code></a> in <a
href="https://redirect.github.com/nodejs/undici/pull/3866">nodejs/undici#3866</a></li>
<li>[Backport v6.x] fix: Fixed the issue that there is no running
request when http2 goaway by <a
href="https://github.com/github-actions"><code>@​github-actions</code></a>
in <a
href="https://redirect.github.com/nodejs/undici/pull/3877">nodejs/undici#3877</a></li>
<li>types: [backport] Update return type of RetryCallback (<a
href="https://redirect.github.com/nodejs/undici/issues/3851">#3851</a>)
by <a href="https://github.com/metcoder95"><code>@​metcoder95</code></a>
in <a
href="https://redirect.github.com/nodejs/undici/pull/3876">nodejs/undici#3876</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/nodejs/undici/compare/v6.21.0...v6.21.1">https://github.com/nodejs/undici/compare/v6.21.0...v6.21.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="e260e7bb17"><code>e260e7b</code></a>
Bumped v6.21.1</li>
<li><a
href="c3acc6050b"><code>c3acc60</code></a>
Merge commit from fork</li>
<li><a
href="2414bc9f7d"><code>2414bc9</code></a>
Update return type of RetryCallback (<a
href="https://redirect.github.com/nodejs/undici/issues/3851">#3851</a>)
(<a
href="https://redirect.github.com/nodejs/undici/issues/3876">#3876</a>)</li>
<li><a
href="be8cd0afa0"><code>be8cd0a</code></a>
[Backport v6.x] fix: Fixed the issue that there is no running request
when ht...</li>
<li><a
href="ee6176cd2e"><code>ee6176c</code></a>
fix: sending formdata bodies with http2 (<a
href="https://redirect.github.com/nodejs/undici/issues/3863">#3863</a>)
[backport] (<a
href="https://redirect.github.com/nodejs/undici/issues/3866">#3866</a>)</li>
<li><a
href="a0220f14bf"><code>a0220f1</code></a>
fix(<a
href="https://redirect.github.com/nodejs/undici/issues/3817">#3817</a>):
send servername for SNI on TLS (<a
href="https://redirect.github.com/nodejs/undici/issues/3821">#3821</a>)
[backport] (<a
href="https://redirect.github.com/nodejs/undici/issues/3864">#3864</a>)</li>
<li><a
href="353ab63188"><code>353ab63</code></a>
fix(<a
href="https://redirect.github.com/nodejs/undici/issues/3736">#3736</a>):
back-port 183f8e9 to v6.x (<a
href="https://redirect.github.com/nodejs/undici/issues/3855">#3855</a>)</li>
<li>See full diff in <a
href="https://github.com/nodejs/undici/compare/v6.21.0...v6.21.1">compare
view</a></li>
</ul>
</details>
<br />


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tests/package-lock.json

@@ -6216,10 +6216,11 @@
       }
     },
     "node_modules/undici": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.0.tgz",
-      "integrity": "sha512-BUgJXc752Kou3oOIuU1i+yZZypyZRqNPW0vqoMPl8VaoalSfeR0D8/t4iAS3yirs79SSMTxTag+ZC86uswv+Cw==",
+      "version": "6.21.1",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.1.tgz",
+      "integrity": "sha512-q/1rj5D0/zayJB2FraXdaWxbhWiNKDvu8naDT2dl1yTlvJp4BLtOcp2a5BvgGNQpYYJzau7tf1WgKv3b+7mqpQ==",
       "dev": true,
+      "license": "MIT",
       "engines": {
         "node": ">=18.17"
       }