Merge pull request #95 from ergebnis/dependabot/composer/phpstan/phpstan-0.12.4

Author: dependabot-preview[bot]

composer.json

@@ -24,7 +24,7 @@
     "ergebnis/phpstan-rules": "~0.14.2",
     "ergebnis/test-util": "~0.9.1",
     "phpstan/extension-installer": "^1.0.3",
-    "phpstan/phpstan": "~0.12.3",
+    "phpstan/phpstan": "~0.12.4",
     "phpstan/phpstan-deprecation-rules": "~0.12.1",
     "phpstan/phpstan-phpunit": "~0.12.5",
     "phpstan/phpstan-strict-rules": "~0.12.1",