Bump actions/download-artifact from 7 to 8 (#5445)

Bumps
[actions/download-artifact](https://github.com/actions/download-artifact)
from 7 to 8.
<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>v8.0.0</h2>
<h2>v8 - What's new</h2>
<blockquote>
<p>[!IMPORTANT]
actions/download-artifact@v8 has been migrated to an ESM module. This
should be transparent to the caller but forks might need to make
significant changes.</p>
</blockquote>
<blockquote>
<p>[!IMPORTANT]
Hash mismatches will now error by default. Users can override this
behavior with a setting change (see below).</p>
</blockquote>
<h3>Direct downloads</h3>
<p>To support direct uploads in <code>actions/upload-artifact</code>,
the action will no longer attempt to unzip all downloaded files.
Instead, the action checks the <code>Content-Type</code> header ahead of
unzipping and skips non-zipped files. Callers wishing to download a
zipped file as-is can also set the new <code>skip-decompress</code>
parameter to <code>true</code>.</p>
<h3>Enforced checks (breaking)</h3>
<p>A previous release introduced digest checks on the download. If a
download hash didn't match the expected hash from the server, the action
would log a warning. Callers can now configure the behavior on mismatch
with the <code>digest-mismatch</code> parameter. To be secure by
default, we are now defaulting the behavior to <code>error</code> which
will fail the workflow run.</p>
<h3>ESM</h3>
<p>To support new versions of the @actions/* packages, we've upgraded
the package to ESM.</p>
<h2>What's Changed</h2>
<ul>
<li>Don't attempt to un-zip non-zipped downloads by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/download-artifact/pull/460">actions/download-artifact#460</a></li>
<li>Add a setting to specify what to do on hash mismatch and default it
to <code>error</code> by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/download-artifact/pull/461">actions/download-artifact#461</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/download-artifact/compare/v7...v8.0.0">https://github.com/actions/download-artifact/compare/v7...v8.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/download-artifact/commit/3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c"><code>3e5f45b</code></a>
Add regression tests for CJK characters (<a
href="https://redirect.github.com/actions/download-artifact/issues/471">#471</a>)</li>
<li><a
href="https://github.com/actions/download-artifact/commit/e6d03f67377d4412c7aa56a8e2e4988e6ec479dd"><code>e6d03f6</code></a>
Add a regression test for artifact name + content-type mismatches (<a
href="https://redirect.github.com/actions/download-artifact/issues/472">#472</a>)</li>
<li><a
href="https://github.com/actions/download-artifact/commit/70fc10c6e5e1ce46ad2ea6f2b72d43f7d47b13c3"><code>70fc10c</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/download-artifact/issues/461">#461</a>
from actions/danwkennedy/digest-mismatch-behavior</li>
<li><a
href="https://github.com/actions/download-artifact/commit/f258da9a506b755b84a09a531814700b86ccfc62"><code>f258da9</code></a>
Add change docs</li>
<li><a
href="https://github.com/actions/download-artifact/commit/ccc058e5fbb0bb2352213eaec3491e117cbc4a5c"><code>ccc058e</code></a>
Fix linting issues</li>
<li><a
href="https://github.com/actions/download-artifact/commit/bd7976ba57ecea96e6f3df575eb922d11a12a9fd"><code>bd7976b</code></a>
Add a setting to specify what to do on hash mismatch and default it to
<code>error</code></li>
<li><a
href="https://github.com/actions/download-artifact/commit/ac21fcf45e0aaee541c0f7030558bdad38d77d6c"><code>ac21fcf</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/download-artifact/issues/460">#460</a>
from actions/danwkennedy/download-no-unzip</li>
<li><a
href="https://github.com/actions/download-artifact/commit/15999bff51058bc7c19b50ebbba518eaef7c26c0"><code>15999bf</code></a>
Add note about package bumps</li>
<li><a
href="https://github.com/actions/download-artifact/commit/974686ed5098c7f9c9289ec946b9058e496a2561"><code>974686e</code></a>
Bump the version to <code>v8</code> and add release notes</li>
<li><a
href="https://github.com/actions/download-artifact/commit/fbe48b1d2756394be4cd4358ed3bc1343b330e75"><code>fbe48b1</code></a>
Update test names to make it clearer what they do</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/download-artifact/compare/v7...v8">compare
view</a></li>
</ul>
</details>
<br />

.github/workflows/ci.yml

@@ -190,7 +190,7 @@ jobs:
           go-version: 1.25.x
 
       - name: Download all coverage artifacts
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           path: /tmp/code_coverage