[Feature Request] [Question] Support for CITATION.cff?

**Is your feature request related to a problem? Please describe.**
CFF is GitHub's standard to maintain a project's citation meta data. Its section on the repository authors is basically a list of contributors. Thus, I would like to maintain that list by this bot.

**Describe the solution you'd like**
Please consider to add support for CFF. The format is based on YAML 1.2, the list of authors I would like to have it maintained by the bot is an array of `person` and `entity` objects named `authors`, given at the top level of the YAML hierarchy.

**Describe alternatives you've considered**
Maybe CFF is already supported and I just failed to find the corresponding section in the documentation; if so, I would like to ask you to please provide me a link to the respective section.

**Additional context**
- the CFF main repository: https://github.com/citation-file-format/citation-file-format
- the definition of CFF: https://github.com/citation-file-format/citation-file-format/blob/main/schema.json