Bump the dev-dependencies group across 1 directory with 2 updates

Bumps the dev-dependencies group with 2 updates in the /composer/helpers/v2 directory: [friendsofphp/php-cs-fixer](https://github.com/PHP-CS-Fixer/PHP-CS-Fixer) and [phpstan/phpstan](https://github.com/phpstan/phpstan).


Updates `friendsofphp/php-cs-fixer` from 3.54.0 to 3.64.0
- [Release notes](https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/releases)
- [Changelog](https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/blob/master/CHANGELOG.md)
- [Commits](PHP-CS-Fixer/PHP-CS-Fixer@v3.54.0...v3.64.0)

Updates `phpstan/phpstan` from 1.10.67 to 1.12.6
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/2.0.x/CHANGELOG.md)
- [Commits](phpstan/phpstan@1.10.67...1.12.6)

---
updated-dependencies:
- dependency-name: friendsofphp/php-cs-fixer
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: phpstan/phpstan
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
...

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

composer/helpers/v2/composer.json

@@ -9,7 +9,7 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.0",
-        "phpstan/phpstan": "~1.10.1"
+        "phpstan/phpstan": "~1.12.6"
     },
     "autoload": {
         "psr-4": {