Add new ember-data rule: require-async-inverse-relationship

[wozny1989]

Task:

• Lints according to this deprecation https://deprecations.emberjs.com/id/ember-data-deprecate-non-strict-relationships
• fixes: Linting Ember Data relationship inverses #1776

[wozny1989]

@NullVoxPopuli What do you think about this?

[NullVoxPopuli]

Adding new recommended rules is a breaking change -- this new rule would have to be left out of the recommended set until the next major of eslint-plugin-ember.

As for the lint rule itself -- I'll let @runspired speak to that.

Code seems 👍

[runspired]

@NullVoxPopuli unclear to me on breaking changes when its a lint to support something that was deprecated and removed a full major version ago in EmberData itself.

That said: @wozny1989 think you could PR this to EmberData instead? we have the infra for a rules package we intended to start adding rules to (including this one) here https://github.com/emberjs/data/tree/main/packages/eslint-plugin-ember-data

[bmish]

The rule can be made recommended later but not when it's initially added, as mentioned here: https://github.com/ember-cli/eslint-plugin-ember#creating-a-new-rule

Note that new rules should not immediately be added to the recommended configuration, as we only consider such breaking changes during major version updates.

[wozny1989]

@bmish Sorry, I didn't notice thing about recommendation, just pushed changes and fix lint errors on CI

[bmish]

Are we good to go with this? I don't mind having Ember Data rules in this plugin for now as we already have a couple and this plugin is widely used.