phpstan level 8 CI check

Author: alexpozzi

phpstan.neon

@@ -2,11 +2,13 @@ includes:
     - vendor/phpstan/phpstan-phpunit/extension.neon
 
 parameters:
-    level: 4
+    level: 8
     paths:
         - src/
         - tests/
     inferPrivatePropertyTypeFromConstructor: true
     reportUnmatchedIgnoredErrors: false
+    checkMissingIterableValueType: false
     ignoreErrors:
         - "#^Call to an undefined static method #"
+        - "#^Parameter \\#1 \\$command of class Symfony\\\\Component\\\\Process\\\\Process constructor expects array, string given\\.$#"