chore(deps): update dependency ember-source to ~6.7.0

[renovate]

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This PR contains the following updates:

Package	Change	Age	Confidence
ember-source (source)	~6.4.0 -> ~6.7.0

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Release Notes

emberjs/ember.js (ember-source)

v6.7.0

Compare Source

• #​20939 [ENHANCEMENT] Add import { trustHTML } from '@​ember/template'; as an alias of `import { htmlSafe } from '@​ember/template', for naming that better matches the behavior.
• #​20941 [CLEANUP] Remove code from deprecate-array-prototype-extensions deprecation that was until 6.0
• #​20920 / #​20922 [INTERNAL] Remove many uses of .extend
• #​20926 [INTERNAL] Remove all view mixins

v6.6.0

Compare Source

• #​20627 [CLEANUP] Remove escapeExpression from @ember/template
• #​20909 Remove microtask in runtime compiler

v6.5.0

Compare Source

• #​20835 [FEATURE] Add a --route-authoring-format option to the route generator to generate template-tag components as route templates per RFC #​1046.
• #​20862 [FEATURE] Add blueprints to generate strict components (template tag) with --strict or --tt per RFC #​0779.
• #​20813 / #​20813 [DEPRECATION] Deprecate import Ember from 'ember' per RFC #​1003.
• #​20880 [CLEANUP] Remove the ember-cli-qunit tests
• #​20891 [CLEANUP] Remove DEPRECATE_COMPONENT_TEMPLATE_RESOLVING deprecation

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