Update saschaegerer/phpstan-typo3 requirement from ^1.8.4 to ^1.8.9

Updates the requirements on [saschaegerer/phpstan-typo3](https://github.com/sascha-egerer/phpstan-typo3) to permit the latest version.
- [Release notes](https://github.com/sascha-egerer/phpstan-typo3/releases)
- [Commits](sascha-egerer/phpstan-typo3@1.8.4...1.8.9)

---
updated-dependencies:
- dependency-name: saschaegerer/phpstan-typo3
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -45,7 +45,7 @@
 		"phpstan/phpstan-phpunit": "^1.3.13",
 		"phpstan/phpstan-strict-rules": "^1.5.1",
 		"phpunit/phpunit": "^8.5.33",
-		"saschaegerer/phpstan-typo3": "^1.8.4",
+		"saschaegerer/phpstan-typo3": "^1.8.9",
 		"sjbr/static-info-tables": "^6.9.6 || ^11.5.2",
 		"squizlabs/php_codesniffer": "^3.7.2",
 		"typo3/cms-extensionmanager": "^10.4.11 || ^11.5.4",