composer(deps): bump phpstan/phpstan in /vendor-bin/phpstan

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 1.9.2 to 1.9.4.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/1.9.x/CHANGELOG.md)
- [Commits](phpstan/phpstan@1.9.2...1.9.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

vendor-bin/phpstan/composer.json

@@ -2,7 +2,7 @@
     "require": {
         "php": "^7.4 || ^8.0",
         "phpstan/extension-installer": "^1.2.0",
-        "phpstan/phpstan": "^1.9.2",
+        "phpstan/phpstan": "^1.9.4",
         "phpstan/phpstan-deprecation-rules": "^1.0.0"
     },
     "config": {