InnerSource Contributions labeler

### New Action request

## Description

It would be helpful to be able to [label contributions to a project](https://docs.github.com/en/issues/using-labels-and-milestones-to-track-work/managing-labels) that come from outside the owning team. This is beneficial for being able to recognize InnerSource practices and measure statistics related to that. This action could be combined with the issue-metrics action to get those statistics for issues/and PRs labeled as InnerSource. InnerSource in this case would be defined as contributions from a non-owner team within an organization. ie. When a feature team contributes to the observability tools on which they depend but do not own as an area of responsibility.

Additionally it may be helpful to "label" the repository with a [Repository Topic](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/classifying-your-repository-with-topics) so that it can be identified as a repository that practices InnerSource.

One complication that would need to be overcome here is the method by which a contribution is determined to be from a "non-owner" team. The tool could rely on several places to get ownership information:
- Interface with [Backstage API](https://backstage.io/docs/features/software-catalog/software-catalog-api/) assuming that there is a Backstage instance that has a complete catalog of repos with ownership information
- Codeowners file (If someone or a group they belong to is in the codeowners file then they could be considered an owner)
- An org chart interface (API) (such as workday, etc.)
- Other ideas? Open to thoughts here...

Bắt đầu bằng việc xem lại tài liệu về GitHub labels và repository topics, sau đó so sánh các nguồn ownership được đề xuất: Backstage API, CODEOWNERS và một org chart API như Workday. Một đóng góp hoàn chỉnh cần xác định cách nhận diện các đóng góp của những người không phải owner, những mục nào nhận InnerSource label và liệu repository topics có được bao gồm hay không.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.