Bump phpstan/extension-installer from 1.4.2 to 1.4.3 (#2476)

Bumps
[phpstan/extension-installer](https://github.com/phpstan/extension-installer)
from 1.4.2 to 1.4.3.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/phpstan/extension-installer/releases">phpstan/extension-installer's
releases</a>.</em></p>
<blockquote>
<h2>1.4.3</h2>
<ul>
<li><a
href="http://github.com/phpstan/extension-installer/commit/85e90b3942d06b2326fba0403ec24fe912372936">85e90b3</a>
- Allow PHPStan ^2.0 (currently in development)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/phpstan/extension-installer/commit/85e90b3942d06b2326fba0403ec24fe912372936"><code>85e90b3</code></a>
Allow PHPStan ^2.0 (currently in development)</li>
<li>See full diff in <a
href="https://github.com/phpstan/extension-installer/compare/1.4.2...1.4.3">compare
view</a></li>
</ul>
</details>
<br />


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composer.json

@@ -54,7 +54,7 @@
  "friendsofphp/php-cs-fixer": "3.64.0",
  "larastan/larastan": "^2.7",
  "mockery/mockery": "1.6.12",
- "phpstan/extension-installer": "1.4.2",
+ "phpstan/extension-installer": "1.4.3",
  "phpstan/phpstan": "1.12.1",
  "phpstan/phpstan-deprecation-rules": "1.2.0",
  "phpstan/phpstan-mockery": "1.1.3",