enable Dependabot v2

[sullis]

https://github.blog/2020-06-01-keep-all-your-packages-up-to-date-with-dependabot/

Make sure that:

• [x] You have read the contribution guidelines.
• [ ] You have created a feature request first to discuss your contribution intent. Please reference the feature request ticket number in the pull request.
• [ ] You use the code formatters provided here and have them applied to your changes. Don't submit any formatting related changes.

• [ ] You submit test cases (unit or integration tests) that back your changes.

Issue description

New Public APIs

Additional context

[mp911de]

Thanks. For now, we would like to not use dependabot.