Bug Report Checklist

• [ x] Have you provided a full/minimal spec to reproduce the issue?

• [x ] Have you validated the input using an OpenAPI validator (example)?

• [x ] Have you tested with the latest master to confirm the issue still exists?

• [ x] Have you searched for related issues/PRs?

Description

PUT requests that have a primitive type, like int or double or bool in the spec, cause compile erros
OAIDefaultApi::putAvgF32BankNr(const qint32 &bank_nr, const ::OpenAPI::OptionalParam<double> &body)
is generated with body type "double"
later called with
QByteArray output = body.value().asJson().toUtf8();
which failes, as double is not class

openapi-generator version

5.4.0

OpenAPI declaration file content or url

see attached

Generation Details

default configuration

Steps to reproduce

generate qt client api with put request with primitive type request body

VHCx64CtrREST.json.txt

proposed solution

change the output array initialistion for primitive types to
QByteArray output = QByteArray::number(body.value());