chore(deps): update dependency ember-cli-update to v0.56.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ember-cli-update	0.55.2 -> 0.56.0

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Release Notes

ember-cli/ember-cli-update

### [`v0.56.0`](https://togithub.com/ember-cli/ember-cli-update/compare/v0.55.2...v0.56.0) [Compare Source](https://togithub.com/ember-cli/ember-cli-update/compare/v0.55.2...v0.56.0)

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Configuration

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