message: docs: custom template actions update code exmaple
  Users don't need the container runner, and variables have to
  be passed in differently
diff: @@ -123,11 +123,15 @@ will set the available actions that the scaffolder has access to.
  ```ts
  import { createBuiltinActions } from '@backstage/plugin-scaffolder-backend';
  import { ScmIntegrations } from '@backstage/integration';
  +import { createNewFileAction } from './actions/custom';
  +export default async function createPlugin(
  + env: PluginEnvironment,
  +): Promise<Router> {
  + const catalogClient = new CatalogClient({ discoveryApi: env.discovery });
  const integrations = ScmIntegrations.fromConfig(env.config);
  const builtInActions = createBuiltinActions({
  - containerRunner,
  integrations,
  catalogClient,
  config: env.config,
  @@ -135,15 +139,16 @@ const builtInActions = createBuiltinActions({
  });
  const actions = [...builtInActions, createNewFileAction()];
  -return await createRouter({
  - containerRunner,
  - catalogClient,
  +
  + return createRouter({
  actions,
  + catalogClient: catalogClient,
  logger: env.logger,
  config: env.config,
  database: env.database,
  reader: env.reader,
  });
  +}
  ```
  ## List of custom action packages
  