[BUG] Dart: Errors ignored in `analysis_options.yaml` do not affect `pana` scanning

Created by: Rexios80

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Description

This PR introduced deprecation annotation support for dart. That's fine, except it ignores the new lint issues by ignoring them in analysis_options.yaml. That would be fine, if pana (the dart package analyzer that awards points on pub.dev) didn't ignore analysis_options.yaml and use its own linter configuration.

openapi-generator version

6.4.0

OpenAPI declaration file content or url

Generation Details

Steps to reproduce

Related issues/PRs

Suggest a fix

Add // ignore: deprecated_member_use_from_same_package to all internal usages of deprecated members during generation