Update dependency ember-template-lint to v5.6.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ember-template-lint	5.5.1 -> 5.6.0

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Release Notes

ember-template-lint/ember-template-lint

### [`v5.6.0`](https://togithub.com/ember-template-lint/ember-template-lint/blob/HEAD/CHANGELOG.md#v560-2023-02-24) [Compare Source](https://togithub.com/ember-template-lint/ember-template-lint/compare/v5.5.1...v5.6.0) ##### :rocket: Enhancement - [#​2818](https://togithub.com/ember-template-lint/ember-template-lint/pull/2818) Add `additionalNonSemanticTags` option to `require-presentational-children` rule ([@​Techn1x](https://togithub.com/Techn1x)) ##### :bug: Bug Fix - [#​2819](https://togithub.com/ember-template-lint/ember-template-lint/pull/2819) Allow intermediate presentation role before context in `require-context-role` rule ([@​Techn1x](https://togithub.com/Techn1x)) - [#​2820](https://togithub.com/ember-template-lint/ember-template-lint/pull/2820) Allow presentation role for `li` in `no-invalid-role` rule ([@​Techn1x](https://togithub.com/Techn1x)) ##### Committers: 1 - Brad Overton ([@​Techn1x](https://togithub.com/Techn1x))

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