composer(deps-dev): bump phpstan/phpstan-phpunit from 1.3.12 to 1.3.13

Bumps [phpstan/phpstan-phpunit](https://github.com/phpstan/phpstan-phpunit) from 1.3.12 to 1.3.13.
- [Release notes](https://github.com/phpstan/phpstan-phpunit/releases)
- [Commits](phpstan/phpstan-phpunit@1.3.12...1.3.13)

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

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

composer.json

@@ -42,7 +42,7 @@
     "phpstan/phpstan": "^1.10.15",
     "phpstan/phpstan-deprecation-rules": "^1.1.3",
     "phpstan/phpstan-doctrine": "^1.3.40",
-    "phpstan/phpstan-phpunit": "^1.3.12",
+    "phpstan/phpstan-phpunit": "^1.3.13",
     "phpstan/phpstan-strict-rules": "^1.5.1",
     "phpunit/phpunit": "^9.6.8",
     "psalm/plugin-phpunit": "~0.18.4",