Bump proc-macro-crate from 1.3.1 to 2.0.0 (#2557)

Bumps [proc-macro-crate](https://github.com/bkchr/proc-macro-crate) from
1.3.1 to 2.0.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/bkchr/proc-macro-crate/releases">proc-macro-crate's
releases</a>.</em></p>
<blockquote>
<h2>v2.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Release 2.0.0 by <a
href="https://github.com/bkchr"><code>@​bkchr</code></a> in <a
href="https://redirect.github.com/bkchr/proc-macro-crate/pull/39">bkchr/proc-macro-crate#39</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/bkchr/proc-macro-crate/compare/v1.3.1...v2.0.0">https://github.com/bkchr/proc-macro-crate/compare/v1.3.1...v2.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/bkchr/proc-macro-crate/commit/cc100ed2bc1ac9bb81812fd435a43e2ef023f355"><code>cc100ed</code></a>
Merge pull request <a
href="https://redirect.github.com/bkchr/proc-macro-crate/issues/39">#39</a>
from bkchr/bkchr-2.0.0</li>
<li><a
href="https://github.com/bkchr/proc-macro-crate/commit/39a7c1844fc4d73ef397a7e8d9419f1f3381aa44"><code>39a7c18</code></a>
Release 2.0.0</li>
<li>See full diff in <a
href="https://github.com/bkchr/proc-macro-crate/compare/v1.3.1...v2.0.0">compare
view</a></li>
</ul>
</details>
<br />


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