Add phpstan/extension-installer

Author: loevgaard

README.md

@@ -13,6 +13,8 @@ composer require --dev setono/code-quality-pack
     * Mutation testing framework to measure the quality of your tests.
 * [jangregor/phpstan-prophecy](https://github.com/jangregor/phpstan-prophecy)
     * PHPStan extension for Prophecy mocking.
+* [phpstan/extension-installer](https://github.com/phpstan/extension-installer)
+    * Automatically registers PHPStan extensions.
 * [phpstan/phpstan](https://phpstan.org/)
     * A static analysis tool that finds bugs without running your code.
 * [phpstan/phpstan-phpunit](https://github.com/phpstan/phpstan-phpunit)

composer.json

@@ -9,6 +9,7 @@
         "infection/infection": "^0.29.14",
         "jangregor/phpstan-prophecy": "^2.3",
         "phpspec/prophecy-phpunit": "^2.5",
+        "phpstan/extension-installer": "*",
         "phpstan/phpstan": "^2.1.46",
         "phpstan/phpstan-phpunit": "^2.0.16",
         "phpstan/phpstan-strict-rules": "^2.0.10",
@@ -26,7 +27,8 @@
         "allow-plugins": {
             "dealerdirect/phpcodesniffer-composer-installer": false,
             "ergebnis/composer-normalize": true,
-            "infection/extension-installer": true
+            "infection/extension-installer": true,
+            "phpstan/extension-installer": true
         },
         "bump-after-update": true,
         "sort-packages": true