Bump phpstan/phpstan from 0.12.67 to 0.12.68 (#10)

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 0.12.67 to 0.12.68.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Commits](phpstan/phpstan@0.12.67...0.12.68)

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

composer.json

@@ -29,7 +29,7 @@
         "doctrine/data-fixtures": "^1.4",
         "friendsofphp/php-cs-fixer": "^v2.17.1",
         "infection/infection": "^0.20.2",
-        "phpstan/phpstan": "0.12.67",
+        "phpstan/phpstan": "0.12.68",
         "phpstan/phpstan-phpunit": "0.12.17",
         "phpunit/phpunit": "^9.5",
         "symfony/browser-kit": "5.2.*",