Bump @nextcloud/eslint-config from 5.1.0 to 6.0.0

Bumps [@nextcloud/eslint-config](https://github.com/nextcloud/eslint-config) from 5.1.0 to 6.0.0.
- [Release notes](https://github.com/nextcloud/eslint-config/releases)
- [Changelog](https://github.com/nextcloud/eslint-config/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nextcloud/eslint-config/compare/v5.1.0...v6.0.0)

---
updated-dependencies:
- dependency-name: "@nextcloud/eslint-config"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

src/mixins/color.js

@@ -1,8 +1,6 @@
 /**
  * @copyright Copyright (c) 2018 Julius Härtl <jus@bitgrid.net>
- *
  * @author Julius Härtl <jus@bitgrid.net>
- *
  * @license GNU AGPL version 3 or any later version
  *
  * This program is free software: you can redistribute it and/or modify
@@ -17,7 +15,6 @@
  *
  * You should have received a copy of the GNU Affero General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
  */
 
 export default {