chore(deps): update dependency phpstan/phpstan to v1.12.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
phpstan/phpstan	1.12.0 -> 1.12.1

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Release Notes

phpstan/phpstan (phpstan/phpstan)

### [`v1.12.1`](https://redirect.github.com/phpstan/phpstan/compare/1.12.0...1.12.1) [Compare Source](https://redirect.github.com/phpstan/phpstan/compare/1.12.0...1.12.1)

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Configuration

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