Consider InnerSource label on new repositories

### New Action request

Create an action or app to watch new repo creation in an org and to trigger an issue in that repo asking if it should be marked as InnerSource (via adding a repository topic) and grant permissions to a configurable GitHub team (presumably an all-employees team).

Define whether this should be a GitHub Action or app that watches new repository creation. Specify how it should ask about InnerSource status, add a repository topic, and grant a configurable team access; done means the complete workflow operates for newly created repositories.

Written by the indexing model from the issue text.