Bump phpstan/phpstan from 0.12.80 to 0.12.81
Bump phpstan/phpstan from 0.12.80 to 0.12.81

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 0.12.80 to 0.12.81.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Commits](https://github.com/phpstan/phpstan/compare/0.12.80...0.12.81)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
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