Upgrade to GitHub's built-in Dependabot #623
Description
https://docs.github.com/en/github/administering-a-repository/about-dependabot-version-updates
- Figure out how to deal with removed tokens: Dependabot triggered Actions cant access secrets or use a writable token dependabot/dependabot-core#3253
- Configure auto-merging with GitHub Actions
- Create Dependabot config file