chore(deps-dev): bump ember-template-lint from 5.11.2 to 5.12.0 (#2545)

Bumps [ember-template-lint](https://github.com/ember-template-lint/ember-template-lint) from 5.11.2 to 5.12.0.
- [Release notes](https://github.com/ember-template-lint/ember-template-lint/releases)
- [Changelog](https://github.com/ember-template-lint/ember-template-lint/blob/master/CHANGELOG.md)
- [Commits](ember-template-lint/ember-template-lint@v5.11.2...v5.12.0)

---
updated-dependencies:
- dependency-name: ember-template-lint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -49,7 +49,7 @@
     "@semantic-release/github": "9.0.4",
     "@semantic-release/release-notes-generator": "11.0.4",
     "concurrently": "8.2.0",
-    "ember-template-lint": "5.11.2",
+    "ember-template-lint": "5.12.0",
     "ember-template-lint-plugin-prettier": "5.0.0",
     "eslint": "8.47.0",
     "eslint-config-prettier": "8.10.0",