Bump serde_yaml from 0.8.21 to 0.8.23 in /packer (#3157)

Summary:
Bumps [serde_yaml](https://github.com/dtolnay/serde-yaml) from 0.8.21 to 0.8.23.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/dtolnay/serde-yaml/releases">serde_yaml's releases</a>.</em></p>
<blockquote>
<h2>0.8.23</h2>
<ul>
<li>Fix handling of YAML 1.1-style octals that begin with <code>+</code> or <code>-</code> sign (<a href="https://github-redirect.dependabot.com/dtolnay/serde-yaml/issues/228">https://github.com/facebook/flipper/issues/228</a>)</li>
</ul>
<h2>0.8.22</h2>
<ul>
<li>Switch float serializer to use the same float formatting library as serde_json</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="44ba87954d"><code>44ba879</code></a> Release 0.8.23</li>
<li><a href="f850da3d4b"><code>f850da3</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/dtolnay/serde-yaml/issues/228">https://github.com/facebook/flipper/issues/228</a> from dtolnay/octal</li>
<li><a href="983b5b3f5f"><code>983b5b3</code></a> Suppress blocks_in_if_conditions clippy lint</li>
<li><a href="57f2e661b8"><code>57f2e66</code></a> Treat YAML 1.1 style octals with sign as string, not base 10 number</li>
<li><a href="f424a15c74"><code>f424a15</code></a> Add test of cases that are NOT supposed to be numbers</li>
<li><a href="75a43c4dbc"><code>75a43c4</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/dtolnay/serde-yaml/issues/218">https://github.com/facebook/flipper/issues/218</a> from rukai/add_unit_struct_test</li>
<li><a href="1db8fdbb85"><code>1db8fdb</code></a> Release 0.8.22</li>
<li><a href="6b836037b5"><code>6b83603</code></a> Switch float serializer from dtoa to ryu</li>
<li><a href="7a02d73770"><code>7a02d73</code></a> Delete disabled borrowed string deserializer test</li>
<li><a href="eb31d62693"><code>eb31d62</code></a> Update from dtoa 0.4 to 1.0</li>
<li>Additional commits viewable in <a href="https://github.com/dtolnay/serde-yaml/compare/0.8.21...0.8.23">compare view</a></li>
</ul>
</details>
<br />

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</details>

Pull Request resolved: https://github.com/facebook/flipper/pull/3157

Reviewed By: antonk52

Differential Revision: D33403878

Pulled By: passy

fbshipit-source-id: 345fc6c4d8e319624b835f5fa3f29efc54501240

packer/Cargo.toml

@@ -14,7 +14,7 @@ clap = "2.34.0"
 shellexpand = "2.1.0"
 tar = "0.4.38"
 serde = { version = "1.0.132", features = ["derive"] }
-serde_yaml = "0.8.21"
+serde_yaml = "0.8.23"
 anyhow = "1.0.52"
 sha2 = "0.10.0"
 data-encoding = "2.3.2"