tools(deps-dev): Update infection/infection requirement from 0.29.5 to 0.29.6 in /tools/infection (#450)

Updates the requirements on
[infection/infection](https://github.com/infection/infection) to permit
the latest version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/infection/infection/releases">infection/infection's
releases</a>.</em></p>
<blockquote>
<h2>Ignore <code>switch(bool)</code> statements in
<code>TrueValue</code> and <code>FalseValue</code> mutators</h2>
<p><strong>Changed:</strong></p>
<ul>
<li>Ignore <code>switch(bool)</code> statements in
<code>TrueValue</code> and <code>FalseValue</code> mutators. by <a
href="https://github.com/shanept"><code>@​shanept</code></a> in <a
href="https://redirect.github.com/infection/infection/pull/1986">infection/infection#1986</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/shanept"><code>@​shanept</code></a> made
their first contribution in <a
href="https://redirect.github.com/infection/infection/pull/1986">infection/infection#1986</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/infection/infection/compare/0.29.5...0.29.6">https://github.com/infection/infection/compare/0.29.5...0.29.6</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/infection/infection/commit/a8510c1d472892dda2ae32e2c4b2e795533db810"><code>a8510c1</code></a>
Ignore switch(bool) statements in TrueValue and FalseValue mutators. (<a
href="https://redirect.github.com/infection/infection/issues/1986">#1986</a>)</li>
<li>See full diff in <a
href="https://github.com/infection/infection/compare/0.29.5...0.29.6">compare
view</a></li>
</ul>
</details>
<br />


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tools/infection/composer.json

@@ -6,7 +6,7 @@
         "php": "^8.1"
     },
     "require-dev": {
-        "infection/infection": "0.29.5",
+        "infection/infection": "0.29.6",
         "roave/security-advisories": "dev-latest"
     },
     "prefer-stable": true,