[BUG] [typescript] @export is not a valid jsdoc decorator

[jckr]

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator?
• 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

in TypeScript, some generated types have the @export decoration - which is not valid per jsdoc.app - the correct form is @exports

openapi-generator version

v7.14.0

OpenAPI declaration file content or url

Generation Details

you need input which is going to trigger the modelOneOf.mustache template

Steps to reproduce

with any such input the incorrect decorator will be generated by the template

Related issues/PRs

Suggest a fix

See #21754