※ 2022年4月10日(日)現在の情報です
結論
Ruby (https://github.com/sferik/twitter) の場合
/path/to/vendor/bundle/ruby/3.1.0/gems/twitter-7.0.0/lib/twitter/rest/request.rb:97:in `fail_or_return_response_body': User has been suspended. (Twitter::Error::Forbidden)
Node (https://github.com/PLhery/node-twitter-api-v2) の場合
/path/to/node_modules/twitter-api-v2/dist/client-mixins/request-handler.helper.js:99 return new types_1.ApiResponseError(errorString, { ^ ApiResponseError: Request failed with code 403 - User has been suspended. (Twitter code 63)