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 migrates your configuration from Dependabot.com to a config file, using 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.

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]

Codecov Report

Merging #145 (80b1911) into develop (942dc76) will decrease coverage by 0.05%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #145      +/-   ##
===========================================
- Coverage    89.80%   89.75%   -0.06%     
===========================================
  Files            8        9       +1     
  Lines          363      361       -2     
  Branches        43       43              
===========================================
- Hits           326      324       -2     
  Misses          24       24              
  Partials        13       13              

Flag	Coverage Δ
unittests	89.75% <ø> (-0.06%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
djangocms_page_meta/models.py	91.83% <0.00%> (-0.40%)	⬇️
djangocms_page_meta/__init__.py	100.00% <0.00%> (ø)

---

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[coveralls]

Coverage remained the same at 93.352% when pulling 80b1911 on dependabot/add-v2-config-file into 942dc76 on develop.

[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.