chore(deps): bump actions/download-artifact from 4 to 6 (#506)

Bumps
[actions/download-artifact](https://github.com/actions/download-artifact)
from 4 to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/download-artifact/releases">actions/download-artifact's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<p><strong>BREAKING CHANGE:</strong> this update supports Node
<code>v24.x</code>. This is not a breaking change per-se but we're
treating it as such.</p>
<ul>
<li>Update README for download-artifact v5 changes by <a
href="https://github.com/yacaovsnc"><code>@​yacaovsnc</code></a> in <a
href="https://redirect.github.com/actions/download-artifact/pull/417">actions/download-artifact#417</a></li>
<li>Update README with artifact extraction details by <a
href="https://github.com/yacaovsnc"><code>@​yacaovsnc</code></a> in <a
href="https://redirect.github.com/actions/download-artifact/pull/424">actions/download-artifact#424</a></li>
<li>Readme: spell out the first use of GHES by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/download-artifact/pull/431">actions/download-artifact#431</a></li>
<li>Bump <code>@actions/artifact</code> to <code>v4.0.0</code></li>
<li>Prepare <code>v6.0.0</code> by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/download-artifact/pull/438">actions/download-artifact#438</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/download-artifact/pull/431">actions/download-artifact#431</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/download-artifact/compare/v5...v6.0.0">https://github.com/actions/download-artifact/compare/v5...v6.0.0</a></p>
<h2>v5.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update README.md by <a
href="https://github.com/nebuk89"><code>@​nebuk89</code></a> in <a
href="https://redirect.github.com/actions/download-artifact/pull/407">actions/download-artifact#407</a></li>
<li>BREAKING fix: inconsistent path behavior for single artifact
downloads by ID by <a
href="https://github.com/GrantBirki"><code>@​GrantBirki</code></a> in <a
href="https://redirect.github.com/actions/download-artifact/pull/416">actions/download-artifact#416</a></li>
</ul>
<h2>v5.0.0</h2>
<h3>🚨 Breaking Change</h3>
<p>This release fixes an inconsistency in path behavior for single
artifact downloads by ID. <strong>If you're downloading single artifacts
by ID, the output path may change.</strong></p>
<h4>What Changed</h4>
<p>Previously, <strong>single artifact downloads</strong> behaved
differently depending on how you specified the artifact:</p>
<ul>
<li><strong>By name</strong>: <code>name: my-artifact</code> → extracted
to <code>path/</code> (direct)</li>
<li><strong>By ID</strong>: <code>artifact-ids: 12345</code> → extracted
to <code>path/my-artifact/</code> (nested)</li>
</ul>
<p>Now both methods are consistent:</p>
<ul>
<li><strong>By name</strong>: <code>name: my-artifact</code> → extracted
to <code>path/</code> (unchanged)</li>
<li><strong>By ID</strong>: <code>artifact-ids: 12345</code> → extracted
to <code>path/</code> (fixed - now direct)</li>
</ul>
<h4>Migration Guide</h4>
<h5>✅ No Action Needed If:</h5>
<ul>
<li>You download artifacts by <strong>name</strong></li>
<li>You download <strong>multiple</strong> artifacts by ID</li>
<li>You already use <code>merge-multiple: true</code> as a
workaround</li>
</ul>
<h5>⚠️ Action Required If:</h5>
<p>You download <strong>single artifacts by ID</strong> and your
workflows expect the nested directory structure.</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/download-artifact/commit/018cc2cf5baa6db3ef3c5f8a56943fffe632ef53"><code>018cc2c</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/download-artifact/issues/438">#438</a>
from actions/danwkennedy/prepare-6.0.0</li>
<li><a
href="https://github.com/actions/download-artifact/commit/815651c680ffe1c95719d0ed08aba1a2f9d5c177"><code>815651c</code></a>
Revert &quot;Remove <code>github.dep.yml</code>&quot;</li>
<li><a
href="https://github.com/actions/download-artifact/commit/bb3a066a8babc8ed7b3e4218896c548fe34e7115"><code>bb3a066</code></a>
Remove <code>github.dep.yml</code></li>
<li><a
href="https://github.com/actions/download-artifact/commit/fa1ce46bbd11b8387539af12741055a76dfdf804"><code>fa1ce46</code></a>
Prepare <code>v6.0.0</code></li>
<li><a
href="https://github.com/actions/download-artifact/commit/4a24838f3d5601fd639834081e118c2995d51e1c"><code>4a24838</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/download-artifact/issues/431">#431</a>
from danwkennedy/patch-1</li>
<li><a
href="https://github.com/actions/download-artifact/commit/5e3251c4ff5a32e4cf8dd4adaee0e692365237ae"><code>5e3251c</code></a>
Readme: spell out the first use of GHES</li>
<li><a
href="https://github.com/actions/download-artifact/commit/abefc31eafcfbdf6c5336127c1346fdae79ff41c"><code>abefc31</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/download-artifact/issues/424">#424</a>
from actions/yacaovsnc/update_readme</li>
<li><a
href="https://github.com/actions/download-artifact/commit/ac43a6070aa7db8a41e756e7a2846221edca7027"><code>ac43a60</code></a>
Update README with artifact extraction details</li>
<li><a
href="https://github.com/actions/download-artifact/commit/de96f4613b77ec03b5cf633e7c350c32bd3c5660"><code>de96f46</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/download-artifact/issues/417">#417</a>
from actions/yacaovsnc/update_readme</li>
<li><a
href="https://github.com/actions/download-artifact/commit/7993cb44e9052f2f08f9b828ae5ef3ecca7d2ac7"><code>7993cb4</code></a>
Remove migration guide for artifact download changes</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/download-artifact/compare/v4...v6">compare
view</a></li>
</ul>
</details>
<br />

<details>
<summary>Most Recent Ignore Conditions Applied to This Pull
Request</summary>

| Dependency Name | Ignore Conditions |
| --- | --- |
| actions/download-artifact | [>= 5.0.a, < 5.1] |
</details>


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.github/workflows/llvm-build-bump-pr.yml

@@ -461,19 +461,19 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Download artifacts for clang-format-git
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           path: packages/clang-format-git/bin
           pattern: cfg-*
 
       - name: Download artifacts for clang-format-git-python
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           path: packages/clang-format-git-python/script
           name: git-clang-format
 
       - name: Download artifacts for clang-format-node
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           path: packages/clang-format-node/bin
           pattern: cfn-*

.github/workflows/test-cross-platform.yml

@@ -83,7 +83,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Download artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           path: .