Ignore errors from nullable_type_declarations

Quick fix for the pint tests

Author: adm-bome

pint.json

@@ -0,0 +1,8 @@
+{
+  "preset": "laravel",
+  "rules": {
+    "nullable_type_declaration_for_default_null_value": {
+      "use_nullable_type_declaration": false
+    }
+  }
+}