Bump clipboard from 1.7.1 to 2.0.4

Bumps [clipboard](https://github.com/zenorocha/clipboard.js) from 1.7.1 to 2.0.4.
- [Release notes](https://github.com/zenorocha/clipboard.js/releases)
- [Commits](https://github.com/zenorocha/clipboard.js/compare/v1.7.1...v2.0.4

)

Signed-off-by: dependabot[bot] <support@dependabot.com>
Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>