composer(deps-dev): Bump phpstan/phpstan from 2.1.30 to 2.1.31

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-version: 2.1.31
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

composer.json

@@ -32,7 +32,7 @@
     "ergebnis/rector-rules": "^1.6.0",
     "fakerphp/faker": "^1.24.1",
     "phpstan/extension-installer": "^1.4.3",
-    "phpstan/phpstan": "^2.1.30",
+    "phpstan/phpstan": "^2.1.31",
     "phpstan/phpstan-deprecation-rules": "^2.0.3",
     "phpstan/phpstan-phpunit": "^2.0.7",
     "phpstan/phpstan-strict-rules": "^2.0.7",