Bump eslint-plugin-ember from 7.7.2 to 7.8.0
Bump eslint-plugin-ember from 7.7.2 to 7.8.0

Bumps [eslint-plugin-ember](https://github.com/ember-cli/eslint-plugin-ember) from 7.7.2 to 7.8.0.
- [Release notes](https://github.com/ember-cli/eslint-plugin-ember/releases)
- [Changelog](https://github.com/ember-cli/eslint-plugin-ember/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ember-cli/eslint-plugin-ember/compare/v7.7.2...v7.8.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
shipshapecode/ember-shepherd,rwwagner90/ember-shepherd,shipshapecode/ember-shepherd,rwwagner90/ember-shepherd