Bump ember-template-lint from 7.6.0 to 7.7.0 (#238)

Bumps [ember-template-lint](https://github.com/ember-template-lint/ember-template-lint) from 7.6.0 to 7.7.0.
- [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](https://github.com/ember-template-lint/ember-template-lint/commits)

---
updated-dependencies:
- dependency-name: ember-template-lint
  dependency-version: 7.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]