Upgrade to GitHub-native Dependabot

[dependabot-preview]

Dependabot Preview will be shut down on August 3rd, 2021. In order to keep getting Dependabot updates, please merge this PR and migrate to GitHub-native Dependabot before then.

Dependabot has been fully integrated into GitHub, so you no longer have to install and manage a separate app. This pull request updates your config file to the new syntax. When merged, 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, and you'll configure Dependabot through the new config file rather than a UI.

Your previous schedule was set to live. This option is no longer supported in the new config file so it has been changed to daily.

You have configured automerging on this repository. There is no automerging support in GitHub-native Dependabot, so these settings will not be added to the new config file. Several 3rd-party GitHub Actions and bots can replicate the automerge feature.

Your account was configured to allow an unlimited number of open pull requests. This option is no longer supported in the new config file so it has been changed to 99.

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 migrating to GitHub-native Dependabot

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

[codecov-commenter]

Codecov Report

Merging #344 (fe97be3) into master (402e5a9) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #344   +/-   ##
=======================================
  Coverage   72.33%   72.33%           
=======================================
  Files          10       10           
  Lines         441      441           
  Branches       73       73           
=======================================
  Hits          319      319           
  Misses         89       89           
  Partials       33       33           

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[dependabot-preview]

As a reminder, Dependabot Preview will be shut down on August 3rd, 2021. You can merge this pull request to migrate to GitHub-native Dependabot. You can read the docs to learn more about what's changing, as well as find out how to get support if you need help migrating.