[BUG] Kotlin-Spring OpenAPI Generator Mustache Template Missing Interface Generation with Tags Annotations

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

Description

I have identified an issue with the current Kotlin-Spring OpenAPI Generator that doesn't generate the API interface with the @Tag annotations
Looking at the mustache template modules/openapi-generator/src/main/resources/kotlin-spring/apiInterface.mustache, it seems that the logic to include the @Tag annotation doesn't exist.
Using the spring generator for java the template and the generator already have this logic.

Kotlin-Spring generator

Spring Java generator

openapi-generator version

v7.1.0 released

Suggest a fix

Apply the same behaviour as the spring generator for java where the @Tag annotations are added.

Start in modules/openapi-generator/src/main/resources/kotlin-spring/apiInterface.mustache and compare it with the Spring Java generator's corresponding template. Run the generator with the issue's reproduction spec, then verify that the generated Kotlin-Spring API interface includes the expected @Tag annotations.