Update v3.py - Fix a fallback error when a type of type is passed in

The type that is not being properly handled is "type". Odd, for certain, but never an issue before the latest version of BlackSheep.

blacksheep/server/openapi/v3.py

@@ -308,7 +308,7 @@ def _get_array_outer_type(self, field_info):
         except AttributeError:
             # Pydantic v2
             # Here we support only simple types
-            return field_info.annotation if type(field_info.annotation) is list else List[field_info.annotation.__args__[0]]
+            return field_info.annotation if type(field_info.annotation) is type else List[field_info.annotation.__args__[0]]
 
     def _get_fields_info(self, object_type):
         try: