Remove use of ember-lifeline

[bertdeblock]

• ember-lifeline is unmaintained, and is already triggering deprecation warnings in newer Ember versions
• The recommendation to use it is outdated, see this issue
• ember-basic-dropdown is widely used, so the less dependencies the better

[bertdeblock]

Will look into the failures asap. Sounds like something is not awaited properly, or I need to re-add a runloop call somewhere. Not sure why it only fails for beta and canary though.

[mkszepp]

@bertdeblock can you maybe tell me in which version you are getting warnings from from ember-lifeline? I have right now all apps on 6.6 (embroider with vite and webpack) and we don't see deprecation warnings for this... and looking release notes from 6.7 there was no deprecation introduced 🤔 https://github.com/emberjs/ember.js/releases/tag/v6.7.0-ember-source

Is this deprecation starting with a beta or canary?

At all its good to remove this package, when this is not anymore maintained.

[bertdeblock]

ember-lifeline imports from ember => https://github.com/ember-lifeline/ember-lifeline/blob/master/packages/ember-lifeline/src/utils/get-timeout-or-test-fallback.ts#L1, which should trigger the barrel file deprecation.

[bertdeblock]

More specifically, this one => https://deprecations.emberjs.com/id/deprecate-import-testing-from-ember/

[bertdeblock]

It seems the failures happen on master as well => https://github.com/bertdeblock/ember-basic-dropdown/actions/runs/17544744717, so maybe it's some kind of regression in ember-source itself.

Asked on Discord.

[bertdeblock]

Seems beta hasn't received the fix yet, will ask on Discord.

[mkszepp]

LGTM! thank you... for merging i would just wait , until fix is released in ember-beta if it's okay

[bertdeblock]

@mkszepp Sure, no problem. Thanks for the review!

[mkszepp]

@bertdeblock released in v8.7.0