[BUG][KOTLIN-SPRING] Invalid FeignClient is generated

Description

Generated FeignClient is wrong:
@RequestMapping annotation not allowed on @FeignClient interfaces

openapi-generator version

6.6.0

Generation Details

openApiGenerate {
    generatorName.set("kotlin-spring")
    inputSpec.set("$projectDir/src/main/resources/registry_api.yaml")
    outputDir.set("$buildDir/generated")
    modelNameSuffix.set("Resource")
    importMappings.put("java.time.OffsetDateTime", "java.time.Instant")
    typeMappings.put("OffsetDateTime", "Instant")
    configOptions.put("basePackage", apiBasePackage)
    configOptions.put("apiPackage", apiBasePackage)
    configOptions.put("modelPackage", "$apiBasePackage.resource")
    configOptions.put("gradleBuildFile", "false")
    configOptions.put("exceptionHandler", "false")
    // configOptions.put("interfaceOnly", "true")
    configOptions.put("generateSupportingFiles", "false")
    configOptions.put("documentationProvider", "none")
    configOptions.put("annotationLibrary", "swagger2")
    configOptions.put("skipDefaultInterface", "true")
    configOptions.put("useSpringBoot3", "true")
    configOptions.put("library", "spring-cloud")
}

When I start to test the generated client, I get the above runtime error about @RequestMapping

Reproduce the generation using the kotlin-spring generator, version 6.6.0, and the referenced registry_api.yaml with the listed Gradle options. Inspect the generated FeignClient and verify that starting the client no longer raises the reported @RequestMapping annotation not allowed on @FeignClient interfaces error.