[Java][jaxrs-resteasy] add @Valid when bean validation is enabled

Created by: tnmtechnologies

Description

This issue is like the #1018 (closed) but for java jaxrs-resteasy generator.

openapi-generator version

3.3.0

OpenAPI declaration file content or url

see #1018 (closed)

Command line used for generation

see #1018 (closed)

Steps to reproduce

see #1018 (closed)

Related issues/PRs

#1018 (closed)

Suggest a fix/enhancement

The fix should be close to #1019 but of course for jaxrs-resteasy generator.