Bumps
[sigstore/cosign-installer](https://github.com/sigstore/cosign-installer)
from 3.8.0 to 3.8.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/sigstore/cosign-installer/releases">sigstore/cosign-installer's
releases</a>.</em></p>
<blockquote>
<h2>v3.8.1</h2>
<h2>What's Changed</h2>
<ul>
<li>use cosign 2.4.3 and other updates by <a
href="https://github.com/cpanato"><code>@cpanato</code></a> in <a
href="https://redirect.github.com/sigstore/cosign-installer/pull/182">sigstore/cosign-installer#182</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/sigstore/cosign-installer/compare/v3...v3.8.1">https://github.com/sigstore/cosign-installer/compare/v3...v3.8.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="
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| .. | ||
| ISSUE_TEMPLATE | ||
| workflows | ||
| CODEOWNERS | ||
| dependabot.yml | ||
| ISSUE_TEMPLATE.md | ||
| PULL_REQUEST_TEMPLATE.md | ||
| SUPPORT.md | ||