Bump phpstan/phpstan from 0.12.90 to 0.12.91

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 0.12.90 to 0.12.91.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Commits](https://github.com/phpstan/phpstan/compare/0.12.90...0.12.91)

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

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

composer.json

@@ -111,7 +111,7 @@
     "fakerphp/faker": "1.*",
     "mockery/mockery": "1.*",
     "nunomaduro/larastan": "^0.7.0",
-    "phpstan/phpstan": "^0.12.34",
+    "phpstan/phpstan": "^0.12.91",
     "phpstan/phpstan-deprecation-rules": "^0.12.5",
     "phpunit/phpunit": "^9.5",
     "roave/security-advisories": "dev-master",