Update dependency ember-template-lint to v6

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ember-template-lint	^5.13.0 -> ^6.0.0

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Release Notes

ember-template-lint/ember-template-lint (ember-template-lint)

v6.0.0

Compare Source

💥 Breaking Change

• #​3029 Enable more recommended rules: no-action-on-submit-button, no-at-ember-render-modifiers, no-builtin-form-components, no-unnecessary-curly-parens, no-unnecessary-curly-strings, simple-modifiers (@​bmish)
• #​3031 Replace 4-x-recommended config with 5-x-recommended (@​bmish)
• #​3023 Drop support for Node 14, 16, 19 (@​Techn1x)
• #​2913 Add additional elements to DOCUMENT_STRUCTURE_ROLES for no-invalid-role rule (@​mrloop)
• #​2729 Add param to obsolete list in no-obsolete-elements rule (@​geneukum)

🏠 Internal

• #​3024 Switch to eslint-plugin-n (@​Techn1x)
• #​3026 Update to eslint-plugin-unicorn v51 (@​Techn1x)
• #​3025 Update to prettier v3 (@​Techn1x)
• #​3028 Start running test that was disabled in Node 14 (@​bmish)

Committers: 4

• Brad Overton (@​Techn1x)
• Bryan Mishkin (@​bmish)
• Ewan McDougall (@​mrloop)
• Geordan Neukum (@​geneukum)

Tracking issue: https://github.com/ember-template-lint/ember-template-lint/issues/2712

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