build(deps-dev): update phpstan/phpstan requirement from ^1.11.5 to ^1.12.5 (#47)

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

Author: dependabot[bot]

composer.json

@@ -13,7 +13,7 @@
         "doctrine/event-manager": "^2.0",
         "editorconfig-checker/editorconfig-checker": "^10.6.0",
         "ergebnis/composer-normalize": "^2.43.0",
-        "phpstan/phpstan": "^1.11.5",
+        "phpstan/phpstan": "^1.12.5",
         "phpstan/phpstan-phpunit": "^1.4.0",
         "phpstan/phpstan-strict-rules": "^1.6.0",
         "phpunit/phpunit": "^10.5.24",