MyPy Fix in request.py

Author: CostcoFanboy

flask_openapi3/request.py

@@ -137,7 +137,7 @@ def _do_request(
         # Create a JSON response with validation error details
         response = make_response(e.json())
         response.headers["Content-Type"] = "application/json"
-        response.status_code = DEFAULT_VALIDATION_ERROR_STATUS
+        response.status_code = int(DEFAULT_VALIDATION_ERROR_STATUS)
         return response
 
     return func_kwargs