[BUG] Spring generator: Incorrect import if spec contains a schema named schema

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

Incorrect import statement when the specfile contains a schema object inside schemas.

Schemas: Schema: allOf: - $ref: '#/components/schemas/Resource' title: Schema properties: id: type: string readOnly: true name: type: string readOnly: true description: type: string readOnly: true attributes: type: array items: $ref: '#/components/schemas/Attribute' readOnly: true

Result:

`
import io.swagger.v3.oas.annotations.media.Schema;

@ResponseStatus(HttpStatus.OK)
Schema getSchema(
@PathVariable("id") String id
);`

Incorrect import default to io.swagger.v3.oas.annotations.media.Schema

openapi-generator version

Version: 7.0.0

OpenAPI declaration file content or url

https://gist.github.com/GianniGiglio/f296bd2e720708a7cb24513b14e6703e

Generation Details

Generator: spring
Library: spring-boot, spring-cloud

Steps to reproduce

Generate using specfile

Start by reproducing the Spring generator output with the OpenAPI declaration in the linked gist, focusing on the schema named Schema and the generated method shown in the report. Trace how the generator chooses imports for that model, and consider the issue done when the generated code imports the model rather than io.swagger.v3.oas.annotations.media.Schema.