chore(deps): Bump rustls-pemfile from 2.0.0 to 2.1.0 (#1196)

Bumps [rustls-pemfile](https://github.com/rustls/pemfile) from 2.0.0 to
2.1.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/rustls/pemfile/releases">rustls-pemfile's
releases</a>.</em></p>
<blockquote>
<h2>2.1.0</h2>
<h2>Headlines</h2>
<ul>
<li>Adds the <code>csr</code> function and the <code>Item::Csr</code>
variant to support loading DER encoded Certificate Signing Requests
(CSRs) from PEM inputs.</li>
</ul>
<h2>What's Changed</h2>
<ul>
<li>add certificate signing request by <a
href="https://github.com/Tudyx"><code>@​Tudyx</code></a> in <a
href="https://redirect.github.com/rustls/pemfile/pull/37">rustls/pemfile#37</a></li>
<li>Cargo: version 2.0.0 -&gt; 2.1.0 by <a
href="https://github.com/cpu"><code>@​cpu</code></a> in <a
href="https://redirect.github.com/rustls/pemfile/pull/38">rustls/pemfile#38</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/Tudyx"><code>@​Tudyx</code></a> made
their first contribution in <a
href="https://redirect.github.com/rustls/pemfile/pull/37">rustls/pemfile#37</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/rustls/pemfile/compare/v/2.0.0...v/2.1.0">https://github.com/rustls/pemfile/compare/v/2.0.0...v/2.1.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/rustls/pemfile/commit/e2d220a5e168f29fcb33378438e7cb5e267375e7"><code>e2d220a</code></a>
Cargo: version 2.0.0 -&gt; 2.1.0</li>
<li><a
href="https://github.com/rustls/pemfile/commit/de3d0ae0eb8bd65ec1e2345e7454c2ed0f2570c2"><code>de3d0ae</code></a>
add certificate signing request</li>
<li>See full diff in <a
href="https://github.com/rustls/pemfile/compare/v/2.0.0...v/2.1.0">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=rustls-pemfile&package-manager=cargo&previous-version=2.0.0&new-version=2.1.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

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