Update dependency ember-source to v4.8.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ember-source (source)	4.8.1 -> 4.8.2

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Release Notes

emberjs/ember.js

### [`v4.8.2`](https://togithub.com/emberjs/ember.js/blob/HEAD/CHANGELOG.md#v482-November-3-2022) [Compare Source](https://togithub.com/emberjs/ember.js/compare/v4.8.1...v4.8.2) - [#​20244](https://togithub.com/emberjs/ember.js/pull/20244) Add missing type for `getComponentTemplate` to preview types

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