chore: Bump phpstan/phpstan from 2.1.30 to 2.1.31 (#57)

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

Author: dependabot[bot]

composer.json

@@ -31,7 +31,7 @@
     "testcontainers/testcontainers": "1.0.3"
   },
   "require-dev": {
-    "phpstan/phpstan": "2.1.30",
+    "phpstan/phpstan": "2.1.31",
     "phpunit/phpunit": "11.5.21",
     "rector/rector": "2.1.7",
     "symplify/easy-coding-standard": "12.6.0"