chore(deps-dev): bump phpstan/phpstan from 2.2.8 to 2.2.9 (#9254)

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan-phar-composer-source) from 2.2.8 to 2.2.9.
- [Commits](https://github.com/phpstan/phpstan-phar-composer-source/commits)

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-version: 2.2.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

composer.lock

@@ -244,11 +244,11 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "2.2.8",
+            "version": "2.2.9",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e285254e60f33c21902efef4a926ca0987c06804",
-                "reference": "e285254e60f33c21902efef4a926ca0987c06804",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/13d6b4f347bad222da436580c8304fa6f83e6bd0",
+                "reference": "13d6b4f347bad222da436580c8304fa6f83e6bd0",
                 "shasum": ""
             },
             "require": {
@@ -304,7 +304,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2026-08-04T22:21:45+00:00"
+            "time": "2026-08-22T07:38:16+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",
@@ -1971,7 +1971,7 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": [],
+    "stability-flags": {},
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
@@ -2006,5 +2006,5 @@
     "platform-overrides": {
         "php": "8.1"
     },
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }