[BUG][Typescript Angular] Broken imports with modelSuffix

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

The import paths of models are broken when the option --modelSuffix is used.

// Generated e.g. with v6.2.1

import { InlineResponse200178MyTestApi } from '../model/inlineResponse200178MyTestApi'; // broken

But the file ../model/inlineResponse200178MyTestApi doesn't exists. The file name has no suffix.

//Generated with v7.0.0 (openapi-generator-cli-7.0.0-20221012.083708-4.jar)

import { InlineResponse200178MyTestApi } from '../model/inlineResponse200178'; // expected

Since you already fixed it in the new major version is there any chance that this bug could be fixed also in 6.x?

openapi-generator version

All versions >= 5.2 and < 7.0.0

OpenAPI declaration file content or url

Reproducible e.g. with https://app.swaggerhub.com/apis/binance_api/BinanceSpotAPI/1.0#/Market/get_api_v3_trades

Generation Details

$ openapi-generator-cli generate -i binance_api-BinanceSpotAPI-1.0-resolved.json -g typescript-angular -o my-test-api/src --additional-properties apiModulePrefix=MyTest,configurationPrefix=MyTestApi,enumNameSuffix=MyTestApi,modelSuffix=MyTestApi,serviceSuffix=MyTestApiService --global-property skipFormModel=false

Steps to reproduce

Generate the linked api with the command above and check the imports in e.g. the file convert.service.ts.

Run the provided openapi-generator-cli command against the BinanceSpotAPI specification and inspect imports in convert.service.ts alongside the generated model filenames. Compare the typescript-angular output with and without modelSuffix, then confirm that every generated model import resolves to an existing file, including the 6.x output.