Update dependency ember-page-title to v8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ember-page-title (source)	7.0.0 -> 8.0.0

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Release Notes

ember-cli/ember-page-title (ember-page-title)

### [`v8.0.0`](https://togithub.com/ember-cli/ember-page-title/releases/tag/v8.0.0): Release 8.0.0 [Compare Source](https://togithub.com/ember-cli/ember-page-title/compare/v7.0.0...v8.0.0) ##### :boom: Breaking Change - [#​261](https://togithub.com/ember-cli/ember-page-title/pull/261) Add a setup for releasing via tags ([@​kategengler](https://togithub.com/kategengler)) - [#​245](https://togithub.com/ember-cli/ember-page-title/pull/245) fix: drop support for Ember < 3.28 and Node < 14 ([@​knownasilya](https://togithub.com/knownasilya)) - [#​241](https://togithub.com/ember-cli/ember-page-title/pull/241) Merge page-title services ([@​bertdeblock](https://togithub.com/bertdeblock)) - [#​229](https://togithub.com/ember-cli/ember-page-title/pull/229) convert to v2 addon ([@​ef4](https://togithub.com/ef4)) ##### :memo: Documentation - [#​261](https://togithub.com/ember-cli/ember-page-title/pull/261) Add a setup for releasing via tags ([@​kategengler](https://togithub.com/kategengler)) ##### :house: Internal - [#​261](https://togithub.com/ember-cli/ember-page-title/pull/261) Add a setup for releasing via tags ([@​kategengler](https://togithub.com/kategengler)) - [#​240](https://togithub.com/ember-cli/ember-page-title/pull/240) chore: add prettier config to repo ([@​knownasilya](https://togithub.com/knownasilya)) - [#​232](https://togithub.com/ember-cli/ember-page-title/pull/232) move `.md` files to published package ([@​SergeAstapov](https://togithub.com/SergeAstapov)) - [#​228](https://togithub.com/ember-cli/ember-page-title/pull/228) Split out docs app ([@​ef4](https://togithub.com/ef4)) - [#​227](https://togithub.com/ember-cli/ember-page-title/pull/227) Refactoring into a monorepo ([@​ef4](https://togithub.com/ef4)) ##### Committers: 5 - Bert De Block ([@​bertdeblock](https://togithub.com/bertdeblock)) - Ilya Radchenko ([@​knownasilya](https://togithub.com/knownasilya)) - Katie Gengler ([@​kategengler](https://togithub.com/kategengler)) - Sergey Astapov ([@​SergeAstapov](https://togithub.com/SergeAstapov)) - Edward Faulkner ([@​ef4](https://togithub.com/ef4))

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