build(deps): bump namespacelabs/nscloud-setup-buildx-action from 0.0.19 to 0.0.20 (#9227)

Bumps
[namespacelabs/nscloud-setup-buildx-action](https://github.com/namespacelabs/nscloud-setup-buildx-action)
from 0.0.19 to 0.0.20.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/namespacelabs/nscloud-setup-buildx-action/releases">namespacelabs/nscloud-setup-buildx-action's
releases</a>.</em></p>
<blockquote>
<h2>v0.0.20</h2>
<h2>What's Changed</h2>
<ul>
<li>Add wait-for-builder input to eagerly start build clusters and wait
for them by <a
href="https://github.com/annervisser"><code>@​annervisser</code></a> in
<a
href="https://redirect.github.com/namespacelabs/nscloud-setup-buildx-action/pull/11">namespacelabs/nscloud-setup-buildx-action#11</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/annervisser"><code>@​annervisser</code></a>
made their first contribution in <a
href="https://redirect.github.com/namespacelabs/nscloud-setup-buildx-action/pull/11">namespacelabs/nscloud-setup-buildx-action#11</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/namespacelabs/nscloud-setup-buildx-action/compare/v0...v0.0.20">https://github.com/namespacelabs/nscloud-setup-buildx-action/compare/v0...v0.0.20</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="91c2e65377"><code>91c2e65</code></a>
Merge pull request <a
href="https://redirect.github.com/namespacelabs/nscloud-setup-buildx-action/issues/11">#11</a>
from namespacelabs/add-wait-for-builder-input-to-eager...</li>
<li><a
href="459dd43ae1"><code>459dd43</code></a>
Add wait-for-builder input to eagerly start build clusters and wait for
them</li>
<li>See full diff in <a
href="7020d7d8e6...91c2e65377">compare
view</a></li>
</ul>
</details>
<br />


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.github/workflows/test.yml

@@ -1057,7 +1057,7 @@ jobs:
         uses: namespacelabs/nscloud-setup@d1c625762f7c926a54bd39252efff0705fd11c64 # v0.0.10
 
       - name: Configure Namespace powered Buildx
-        uses: namespacelabs/nscloud-setup-buildx-action@7020d7d8e659afecbfec162ab4693c7e56278311 # v0.0.19
+        uses: namespacelabs/nscloud-setup-buildx-action@91c2e6537780e3b092cb8476406be99a8f91bd5e # v0.0.20
 
       - name: Download Source Tarball Artifacts
         uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0