Update dependency ember-cli to v4.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ember-cli (source)	4.3.0 -> 4.4.0

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Release Notes

ember-cli/ember-cli

### [`v4.4.0`](https://togithub.com/ember-cli/ember-cli/blob/HEAD/CHANGELOG.md#v440) [Compare Source](https://togithub.com/ember-cli/ember-cli/compare/v4.3.0...v4.4.0) ##### Blueprint Changes - [`ember new` diff](https://togithub.com/ember-cli/ember-new-output/compare/v4.3.0...v4.4.0) - [`ember addon` diff](https://togithub.com/ember-cli/ember-addon-output/compare/v4.3.0...v4.4.0) ##### Changelog - [#​9611](https://togithub.com/ember-cli/ember-cli/pull/9611) use more standard markdown for addon readme [@​mansona](https://togithub.com/mansona) - [#​9818](https://togithub.com/ember-cli/ember-cli/pull/9818) Update actions/checkout action to v3 [@​SergeAstapov](https://togithub.com/SergeAstapov) - [#​9819](https://togithub.com/ember-cli/ember-cli/pull/9819) Update actions/setup-node action to v3 [@​SergeAstapov](https://togithub.com/SergeAstapov) - [#​9822](https://togithub.com/ember-cli/ember-cli/pull/9822) Update `since.available` and `since.enabled` versions for Bower deprecations [@​bertdeblock](https://togithub.com/bertdeblock) - [#​9850](https://togithub.com/ember-cli/ember-cli/pull/9850) Fix contents of addon `.gitignore` file [@​bertdeblock](https://togithub.com/bertdeblock) Thank you to all who took the time to contribute!

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