Bumps phpstan/phpstan](https://github.com/phpstan/phpstan)) from 0.12.50 to 0.12.52. - Release notes](https://github.com/phpstan/phpstan/releases)) - Commits](https://github.com/phpstan/phpstan/compare/0.12.50...0.12.52))
Signed-off-by: dependabot[bot] <support@github.com>