spring generator validation annotations doesn't work

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

I am trying to generate spring code based on open-api spec version 3.0.1. When I run that project I noticed that sprin boot doesn't respect validation and it works like without validation.

openapi-generator version

5.2.1

OpenAPI declaration file content or url

https://gist.github.com/rajdippatel/1fa05a79f15bbcdd0b64c805973d9d13

Generation Details

openapi-generator-cli generate -g spring -i specs.yaml -o out/spring/openapi

Steps to reproduce

• Generate spring code based on specs.yaml and above config
• Once spring will be generated run code
• You will see /auth/login will be executed even if required attributes are present

Related issues/PRs

• None

• Suggest a fix

• Enable performBeanValidation or useBeanValidation. But if I enable it I can see it injects "hibernate-validation" package and it fails to build project.

• If I add hibernate-validation in pom dependency, project compiles but still validation doesn't work

Start with specs.yaml and the generated Spring project produced by the documented openapi-generator-cli command. Inspect the generated /auth/login behavior, validation annotations, and the hibernate-validation dependency setup; done means the generated project builds and rejects requests missing required attributes.