Bump serde_json from 1.0.105 to 1.0.106 in /packer (#5128)

Summary:
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.105 to 1.0.106.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/serde-rs/json/releases">serde_json's releases</a>.</em></p>
<blockquote>
<h2>v1.0.106</h2>
<ul>
<li>Add <code>Value::as_number</code> accessor (<a href="https://redirect.github.com/serde-rs/json/issues/1069">https://github.com/facebook/flipper/issues/1069</a>, thanks <a href="https://github.com/chanced"><code>@​chanced</code></a>)</li>
<li>Add <code>Number::as_str</code> accessor under &quot;arbitrary_precision&quot; feature (<a href="https://redirect.github.com/serde-rs/json/issues/1067">https://github.com/facebook/flipper/issues/1067</a>, thanks <a href="https://github.com/chanced"><code>@​chanced</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="45f10ec816"><code>45f10ec</code></a> Release 1.0.106</li>
<li><a href="f346308cda"><code>f346308</code></a> Elaborate on documentation of Number::as_str</li>
<li><a href="f16cad635d"><code>f16cad6</code></a> Add cfg banner to documentation of Number::as_str</li>
<li><a href="fc8dd13aa2"><code>fc8dd13</code></a> Touch up PR 1067</li>
<li><a href="028b643930"><code>028b643</code></a> Merge pull request <a href="https://redirect.github.com/serde-rs/json/issues/1067">https://github.com/facebook/flipper/issues/1067</a> from chanced/add-as_str-to-number</li>
<li><a href="db75c22990"><code>db75c22</code></a> Fix unintended u8 link inferred by intra doc link</li>
<li><a href="11b603cf07"><code>11b603c</code></a> Resolve rustdoc::redundant_explicit_links lint</li>
<li><a href="95c5d6c8be"><code>95c5d6c</code></a> Fix documentation typo from PR 1069</li>
<li><a href="5a39516161"><code>5a39516</code></a> Reorder Value::as_number after is_number</li>
<li><a href="6a5fef9190"><code>6a5fef9</code></a> Wrap as_number documentation to 80 columns</li>
<li>Additional commits viewable in <a href="https://github.com/serde-rs/json/compare/v1.0.105...v1.0.106">compare view</a></li>
</ul>
</details>
<br />

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</details>

Pull Request resolved: https://github.com/facebook/flipper/pull/5128

Reviewed By: antonk52

Differential Revision: D49313905

Pulled By: passy

fbshipit-source-id: 24eab521c3f0f0957db740854e614d94d0c13ef8

packer/Cargo.lock

@@ -720,9 +720,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.105"
+version = "1.0.106"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "693151e1ac27563d6dbcec9dee9fbd5da8539b20fa14ad3752b2e6d363ace360"
+checksum = "2cc66a619ed80bf7a0f6b17dd063a84b88f6dea1813737cf469aef1d081142c2"
 dependencies = [
  "itoa",
  "ryu",