chore(deps): update dependency ember-source to v5.6.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ember-source (source)	5.2.0 -> 5.6.0
ember-source (source)	~5.5.0 -> ~5.6.0

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Release Notes

emberjs/ember.js (ember-source)

### [`v5.6.0`](https://togithub.com/emberjs/ember.js/blob/HEAD/CHANGELOG.md#v560-January-22-2024) [Compare Source](https://togithub.com/emberjs/ember.js/compare/v5.5.0...v5.6.0) - [#​20595](https://togithub.com/emberjs/ember.js/pull/20595) \[BUGFIX] An addon re-export should always be a JavaScript file - [#​20603](https://togithub.com/emberjs/ember.js/pull/20603) \[BUGFIX] Internal templates should be strictMode - [#​20605](https://togithub.com/emberjs/ember.js/pull/20605) \[BUGFIX] Move babel-plugin-ember-template-compilation to dependencies - [#​20570](https://togithub.com/emberjs/ember.js/pull/20570) \[CLEANUP] Remove all traces of named outlets code ### [`v5.5.0`](https://togithub.com/emberjs/ember.js/blob/HEAD/CHANGELOG.md#v550-December-11-2023) [Compare Source](https://togithub.com/emberjs/ember.js/compare/v5.4.1...v5.5.0) - [#​20575](https://togithub.com/emberjs/ember.js/pull/20575) \[BUGFIX] Update backburner.js to 2.4.2 - [#​20578](https://togithub.com/emberjs/ember.js/pull/20578) \[BUGFIX] Deprecate outlet `TemplateFactory` support - [#​20559](https://togithub.com/emberjs/ember.js/pull/20559) \[INTERNAL] Switch to pnpm ### [`v5.4.1`](https://togithub.com/emberjs/ember.js/blob/HEAD/CHANGELOG.md#v541-January-22-2024) [Compare Source](https://togithub.com/emberjs/ember.js/compare/v5.4.0...v5.4.1) - [#​20575](https://togithub.com/emberjs/ember.js/pull/20575) \[BUGFIX] Update backburner.js to 2.4.2 - [#​20595](https://togithub.com/emberjs/ember.js/pull/20595) \[BUGFIX] Blueprints: An addon re-export should always be a JavaScript file ### [`v5.4.0`](https://togithub.com/emberjs/ember.js/blob/HEAD/CHANGELOG.md#v540-October-30-2023) [Compare Source](https://togithub.com/emberjs/ember.js/compare/v5.3.0...v5.4.0) - [#​20521](https://togithub.com/emberjs/ember.js/pull/20521) \[FEATURE] Add TypeScript support for looking up controllers in DI registry - [#​20529](https://togithub.com/emberjs/ember.js/pull/20529) \[BUGFIX] Don't rethrow string errors in handleTransitionReject - [#​20210](https://togithub.com/emberjs/ember.js/pull/20210) \[BUGFIX] Fix hanging tests caused by legacy rsvp code - [#​20530](https://togithub.com/emberjs/ember.js/pull/20530) Upgrade the Glimmer VM to 0.84.3 ### [`v5.3.0`](https://togithub.com/emberjs/ember.js/blob/HEAD/CHANGELOG.md#v530-September-18-2023) [Compare Source](https://togithub.com/emberjs/ember.js/compare/v5.2.0...v5.3.0) - [#​20376](https://togithub.com/emberjs/ember.js/pull/20376) / [#​20524](https://togithub.com/emberjs/ember.js/pull/20524) \[DEPRECATION] Deprecate implicit record loading in Ember Route per [RFC #​774](https://rfcs.emberjs.com/id/0774-implicit-record-route-loading).

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