chore: ember-cli-babel 7 and ember-inflector 4

[Techn1x]

Just updating the dependencies of this addon to help out other repos that depend on this addon

Note that ember-cli-babel 7;

• drops support for Node 4.
• drops support for ember-cli versions prior to 2.13

I've just assumed this hasn't broken anything - CI seems down so haven't been able to run the tests.

[dustinfarris]

Thanks for this. What version of ember are you using in your project?

[Techn1x]

3.28 for my project, but my goal is to update ember-data-factory-guy to ember 4 and ember-auto-import 2

I don't actually use this Django adapter addon personally, but I do use ember-data-factory-guy which uses this addon