[TOOLS] Remove CodeCeption files from composer autoload-dev, since they're not available before installing, and ignore errors in PHPStan

composer.json

@@ -112,11 +112,7 @@
     "autoload-dev": {
         "psr-4": {
             "App\\Tests\\": "tests/"
-        },
-        "files": [
-            "tests/CodeCeption/_support/_generated/AcceptanceTesterActions.php",
-            "tests/CodeCeption/_support/AcceptanceTester.php"
-        ]
+        }
     },
     "replace": {
         "paragonie/random_compat": "2.*",

phpstan.neon

@@ -25,6 +25,11 @@ parameters:
             message: '/^Property App\\PHPStan\\ClassFromTableNameDynamicStaticMethodReturnTypeExtension::\$provider is never read, only written\./'
             path: src/PHPStan/ClassFromTableNameDynamicStaticMethodReturnTypeExtension.php
 
+        -
+            message: '/Access to constant STANDARD_WCAG2A?A?A? on an unknown class Helper\\AccessibilityValidator/'
+            paths:
+                - *
+
         # -
         #     message: '/has no return typehint specified/'
         #     paths: