Build(deps-dev): Bump phpstan/phpstan-webmozart-assert (#1912)

Bumps [phpstan/phpstan-webmozart-assert](https://github.com/phpstan/phpstan-webmozart-assert) from 1.0.8 to 1.0.9.
- [Release notes](https://github.com/phpstan/phpstan-webmozart-assert/releases)
- [Commits](phpstan/phpstan-webmozart-assert@1.0.8...1.0.9)

---
updated-dependencies:
- dependency-name: phpstan/phpstan-webmozart-assert
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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