monaco-languageclient: [MonacoEditorReactComp] python syntax highlighting no longer works after update to 8.0.0

We are using <MonacoEditorReactComp /> with python-lsp-server in our electron app, after the update to 8.0.0 the syntax highlighting stopped working. Everything else works fine. @codingame/monaco-vscode-python-default-extension is in importet aswell. After having a throughout look at the new examples we are not sure what is still missing.

Debug log:

Initializing vscode services. Caller: monaco-editor (16)
Loading service: fileService
Loading service: textFileService
Loading service: filesConfigurationService
Loading service: elevatedFileService
Loading service: labelService
Loading service: configurationService
Loading service: contextService
Loading service: textResourceConfigurationService
Loading service: workspaceEditingService
Loading service: workspacesService
Loading service: textResourcePropertiesService
Loading service: languageService
Loading service: ILanguageStatusService
Loading service: textModelService
Initialization of vscode services completed successfully.
Starting monaco-editor (16)
Init of Classic App was completed.
getWorker: moduleId: workerMain.js label: editorWorkerService
Creating worker: file:///home/leon/Projects/frontend/node_modules/monaco-editor-wrapper/dist/workers/editorWorker-es.js
LanguageClientWrapper status:
LanguageClient: Python Language Server is in a 'Running' state
logger.js:20 languageClientWrapper (Python Language Server): Started successfully``.

UserConfig:

    languageClientConfig: {
      options: {
        name: 'Python Language Server',
        $type: 'WebSocket',
        host: 'localhost',
        port: 9002,
        path: 'python',
        secured: false,
        startOptions: {
          onCall: (languageClient?: MonacoLanguageClient) => {
            languageClient?.sendRequest(
              'workspace/didChangeConfiguration',
              pluginConfig
            );
          },
          reportStatus: true,
        },
      },
      clientOptions: {
        documentSelector: ['python'],
        workspaceFolder: {
          index: 0,
          name: 'workspace',
          uri: URI.file(stepsUrl ?? ''),
        },
      },
    },
    wrapperConfig: {
      serviceConfig: {
        debugLogging: true,
      },
      editorAppConfig: {
        $type: 'classic',
        languageId: 'python',
        useDiffEditor: false,
        code,
      },
    },
  };