Merge #743

743: Bump thiserror from 1.0.26 to 1.0.28 r=thomaseizinger a=dependabot[bot]

Bumps [thiserror](https://github.com/dtolnay/thiserror) from 1.0.26 to 1.0.28.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/dtolnay/thiserror/releases">thiserror's releases</a>.</em></p>
<blockquote>
<h2>1.0.28</h2>
<ul>
<li>Make <code>?</code> work with error types that hold an optional source (<a href="https://github-redirect.dependabot.com/dtolnay/thiserror/issues/147">#147</a>)</li>
</ul>
<h2>1.0.27</h2>
<ul>
<li>Support forwarding backtrace method to source's backtrace method (<a href="https://github-redirect.dependabot.com/dtolnay/thiserror/issues/137">#137</a>, <a href="https://github-redirect.dependabot.com/dtolnay/thiserror/issues/146">#146</a>, thanks <a href="https://github.com/astraw"><code>`@​astraw</code></a>)</li>`
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="b47c75d3f5"><code>b47c75d</code></a> Release 1.0.28</li>
<li><a href="9af5265aa9"><code>9af5265</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/dtolnay/thiserror/issues/147">#147</a> from dtolnay/optionfrom</li>
<li><a href="2a2d1725e7"><code>2a2d172</code></a> Support #[from] on an Option field</li>
<li><a href="6159aba3b7"><code>6159aba</code></a> Add test of #[from] on optional source</li>
<li><a href="b087faf217"><code>b087faf</code></a> Release 1.0.27</li>
<li><a href="2e2c126342"><code>2e2c126</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/dtolnay/thiserror/issues/146">#146</a> from dtolnay/backtrace</li>
<li><a href="71c7ebec0e"><code>71c7ebe</code></a> Update documentation of source-backtrace behavior</li>
<li><a href="799bb53b10"><code>799bb53</code></a> Extract combined backtrace-source case to separate match arm</li>
<li><a href="d49c5af10f"><code>d49c5af</code></a> Handle backtrace coming from Option source field</li>
<li><a href="2b37b9ed62"><code>2b37b9e</code></a> Handle enum containing #[source] #[backtrace] field</li>
<li>Additional commits viewable in <a href="https://github.com/dtolnay/thiserror/compare/1.0.26...1.0.28">compare view</a></li>
</ul>
</details>
<br />


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

Cargo.lock

@@ -4078,18 +4078,18 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.26"
+version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93119e4feac1cbe6c798c34d3a53ea0026b0b1de6a120deef895137c0529bfe2"
+checksum = "283d5230e63df9608ac7d9691adc1dfb6e701225436eb64d0b9a7f0a5a04f6ec"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.26"
+version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "060d69a0afe7796bf42e9e2ff91f5ee691fb15c53d38b4b62a9a53eb23164745"
+checksum = "fa3884228611f5cd3608e2d409bf7dce832e4eb3135e3f11addbd7e41bd68e71"
 dependencies = [
  "proc-macro2",
  "quote",