chore(deps): update dependency jetbrains/phpstorm-stubs to v2026.2

Author: renovate[bot]

composer.json

@@ -39,7 +39,7 @@
     "phpunit/phpunit": "13.2.0",
     "squizlabs/php_codesniffer": "4.0.1",
     "mockery/mockery": "1.6.12",
-    "jetbrains/phpstorm-stubs": "2026.1",
+    "jetbrains/phpstorm-stubs": "2026.2",
     "php-coveralls/php-coveralls": "2.9.1",
     "psalm/phar": "^6.0",
     "brianium/paratest": "^7.22",