Update phpstan/phpstan requirement from 1.12.6 to 1.12.7

Updates the requirements on [phpstan/phpstan](https://github.com/phpstan/phpstan) to permit the latest version.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/2.0.x/CHANGELOG.md)
- [Commits](https://github.com/phpstan/phpstan/compare/1.12.6...1.12.7)

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-type: direct:development
...

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

composer.json

@@ -62,7 +62,7 @@
         "mikey179/vfsstream": "^1.6.10",
         "mockery/mockery": "^1.6",
         "paragonie/csp-builder": "^2.3 || ^3.0",
-        "phpstan/phpstan": "1.12.6",
+        "phpstan/phpstan": "1.12.7",
         "phpstan/extension-installer": "^1.3",
         "symplify/phpstan-rules": "^12.4",
         "phpunit/phpunit": "^10.5.5 || ^11.1.3"