Create Dependabot config file

[dependabot-preview[bot]]

:wave: Dependabot is moving natively into GitHub! This pull request migrates your configuration from Dependabot.com to a config file, using the new syntax. When you merge this pull request, we'll swap out dependabot-preview (me) for a new dependabot app, and you'll be all set!

With this change, you'll now use the Dependabot page in GitHub, rather than the Dependabot dashboard, to monitor your version updates. Dependabot is now configured exclusively using config files.

If you've got any questions or feedback for us, please let us know by creating an issue in the dependabot/dependabot-core repository.

Learn more about the relaunch of Dependabot

Please note that regular @dependabot commands do not work on this pull request.

:robot::yellow_heart:

[codecov[bot]]

Codecov Report

Merging #14 into master will not change coverage. The diff coverage is n/a.

@@             Coverage Diff             @@
##              master       #14   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        11        11           
===========================================
  Files              2         2           
  Lines             22        22           
===========================================
  Hits              22        22           

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update e560f47...83ef1a3. Read the comment docs.