Update phpstan/extension-installer requirement from ^1.3 to ^1.4

Updates the requirements on [phpstan/extension-installer](https://github.com/phpstan/extension-installer) to permit the latest version.
- [Release notes](https://github.com/phpstan/extension-installer/releases)
- [Commits](phpstan/extension-installer@1.3.0...1.4.1)

---
updated-dependencies:
- dependency-name: phpstan/extension-installer
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -30,7 +30,7 @@
     },
     "bin": ["bin/convert", "bin/build_hw_jsons", "bin/refresh_hw_sources","bin/validate"],
     "require-dev": {
-        "phpstan/extension-installer": "^1.3",
+        "phpstan/extension-installer": "^1.4",
         "phpstan/phpstan": "^1.11",
         "phpstan/phpstan-deprecation-rules": "^1.2",
         "phpunit/phpunit": "^9.6",