[BUG] [JAVA] [JAXRS-SPEC] Outer enum is given @Valid in jaxrs-spec

[CREKD127]

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?
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Description

#18430
In this Issue, we have added support for not performing validation on enums that are not inline.
But, when I generate it using jaxrs-spec, it still has the @Valid annotation.

OpenAPI declaration file content or url

The test added in this PR is still given @Valid.
https://github.com/OpenAPITools/openapi-generator/pull/18664/files#diff-b84cef880717fd1f86abd47136c71acaa9c93ce0f3b4cc0093274a3ccfcefd78R143
https://github.com/OpenAPITools/openapi-generator/pull/18664/files#diff-b84cef880717fd1f86abd47136c71acaa9c93ce0f3b4cc0093274a3ccfcefd78R162

Perhaps @Valid is no longer given in jaxrs modules other than jaxrs-spec.
https://github.com/OpenAPITools/openapi-generator/pull/18451/files#diff-0193b51e2ebc7a334d29a9aa3f277cea846352f7ae2b168a3cf08af1fa939508R281

[wing328]

closed via #18697