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 #1 (69c3db4) into develop (aeac393) will increase coverage by 0.74%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop       #1      +/-   ##
===========================================
+ Coverage    69.49%   70.24%   +0.74%     
===========================================
  Files           15       20       +5     
  Lines          718      736      +18     
  Branches       115      115              
===========================================
+ Hits           499      517      +18     
  Misses         207      207              
  Partials        12       12              

Impacted Files	Coverage Δ
etlx/__init__.py	100.00% <0.00%> (ø)
etlx/sql/__init__.py	100.00% <0.00%> (ø)
etlx/dbi/mysql/__init__.py	100.00% <0.00%> (ø)
etlx/dbi/sqlite/__init__.py	100.00% <0.00%> (ø)
etlx/abc/__init__.py	100.00% <0.00%> (ø)

---

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 aeac393...69c3db4. Read the comment docs.