Revisit middleware reporting

[MelSumner]

Reviewing the package recently and we have a dependency for middleware reporting @scalvert/ember-setup-middleware-reporter that was last touched in Sept 2021.

This package should be evaluated and we should consider if axe-core perhaps now has integrated reporting that we should be using instead.

If we decide to change this, then we'd need a new major version and some guidance for folks about what would change and what they would need to do instead.

cc @ember-a11y/a11y-working-group-members

[KamiKillertO]

Looks like there's an official reporter package

[MelSumner]

Someone else pointed out that this would likely need more work to be compatible with the new build process and vite.