Update dependency ember-resolver to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ember-resolver	^7.0.0 -> ^8.0.0

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Release Notes

ember-cli/ember-resolver

v8.0.2

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🐛 Bug Fix

• #​590 Revert "Ensure app/foo/index.js can be looked up with foo:main" (@​rwjblue)

Committers: 1

• Robert Jackson (@​rwjblue)

v8.0.1

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🐛 Bug Fix

• #​588 Ensure app/foo/index.js can be looked up with foo:main (@​snewcomer)

Committers: 1

• Scott Newcomer (@​snewcomer)

v8.0.0

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💥 Breaking Change

• #​542 Remove automatic dasherization of modifiers. (@​rwjblue)
• #​532 Drop support for Node 8 (@​buschtoens)

🐛 Bug Fix

• #​531 Fix resolving @scope/name namespaces (@​buschtoens)

Committers: 2

• Jan Buschtöns (@​buschtoens)
• Robert Jackson (@​rwjblue)

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