Docs: Update Clipboard.js

Created by: coliff

Bootstrap docs uses clipboard.js 2.0.8. (https://github.com/twbs/bootstrap/blob/main/site/assets/js/vendor/clipboard.min.js)

Low priority I guess but it could be good to update to the latest 2.0.11 https://github.com/zenorocha/clipboard.js/releases https://github.com/zenorocha/clipboard.js/blob/master/dist/clipboard.min.js