Update dependency @ember/test-helpers to v2.9.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@ember/test-helpers	2.9.0 -> 2.9.4

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Release Notes

emberjs/ember-test-helpers (@​ember/test-helpers)

v2.9.4: Release 2.9.4

Compare Source

🐛 Bug Fix

• #​1418 (backport) bugfix: handle null and undefined in setProperties (@​chriskrycho)

Committers: 1

• Chris Krycho (@​chriskrycho)

v2.9.3: Release 2.9.3

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🐛 Bug Fix

• #​1305 [backport] Avoid unnecessary dependencies on @glimmer types (@​dfreeman)

Committers: 1

• Dan Freeman (@​dfreeman)

v2.9.2: Release 2.9.2

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🐛 Bug Fix

• #​1302 [backport] Remove the index signature from TestContext (@​chriskrycho)
  • Backporting #​1301 Remove the index signature from TestContext (@​dfreeman)
• #​1303 TestContext.resumeTest() returns void, not Promise<void> (@​chriskrycho)

Committers: 1

• Chris Krycho (@​chriskrycho)
• Dan Freeman (@​dfreeman)

v2.9.1: Release 2.9.1

Compare Source

Note: these were all back-ported from master since they could go out on 2.9. This will be the last 2.9 release unless there are critical bug fixes here!

🐛 Bug Fix

• Let ESLint have its way about docstring location (a8fac83)
• DOC: API: add render helper examples (f476a20)
• Tweak TS style for indexing multiple types (for getElement) (f01ad9f)
• Use export type for RenderingTestContext (2dc5077)
• Tweak TS style for indexing multiple types (3214483)
• Address PR feedback (5e87a54)
• DOC: API: add DOM query helper examples (83b7f5f)
• Export type for Target (335019d)
• Upgrade expect-type and fix issues the new version reveals (bae5e33)
• Correctly handle special char keyCodes with Shift (d537923)
• Add tab type test (64f40d5)
• Generate documentation (939f29f)
• Ensure types reflect optional-ness of tab options (95285cc)
• Fix typesVersions config again (53fa899)
• Clean up public-types after pack (b9dcbca)

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