fix(lambda): bump js-yaml from 3.15.0 to 3.15.1 in /lambdas (github-aws-runners#5264)

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 3.15.0 to
3.15.1.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/nodeca/js-yaml/blob/3.15.1/CHANGELOG.md">js-yaml's
changelog</a>.</em></p>
<blockquote>
<h2>3.15.1 - 2026-07-31</h2>
<h3>Security</h3>
<ul>
<li>[backport] Remove quadratic complexity from <code>!!omap</code>
duplicate key detection.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/nodeca/js-yaml/commit/ab85ae2c622bc6d8cdbceccafe9f9b7df80463ed"><code>ab85ae2</code></a>
3.15.1 released</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/30a5e7647a4454f7bac969bfbbe7eac9921a4279"><code>30a5e76</code></a>
dist rebuild</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/22a8071ef032117bc6249c330b240ac3aa2d3ded"><code>22a8071</code></a>
Backport quadratic complexity fix for !!omap</li>
<li>See full diff in <a
href="https://github.com/nodeca/js-yaml/compare/3.15.0...3.15.1">compare
view</a></li>
</ul>
</details>
<br />

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

lambdas/yarn.lock

@@ -8245,14 +8245,14 @@ __metadata:
   linkType: hard
 
 "js-yaml@npm:^3.10.0, js-yaml@npm:^3.13.1":
-  version: 3.15.0
-  resolution: "js-yaml@npm:3.15.0"
+  version: 3.15.1
+  resolution: "js-yaml@npm:3.15.1"
   dependencies:
     argparse: "npm:^1.0.7"
     esprima: "npm:^4.0.0"
   bin:
     js-yaml: bin/js-yaml.js
-  checksum: 10c0/ca966bd354ac5b1b7a4694ebdba46526796aa3a6a99529fa540af2abf85918bd155a50ccc0166b413130a00622999973754458ec01e7095bc902177bfdbd5b64
+  checksum: 10c0/6c693b8c59ffe12021df3b36994b090df19d920826dd810baab81652b40861e1974509dd11fe92225ab4c00cc14de053300c94db015c2c0e211edea39b118737
   languageName: node
   linkType: hard