Update devDependencies

Update devDependencies

* @babel/cli                    ^7.13.0  →  ^7.13.14
* @babel/core                   ^7.13.8  →  ^7.13.14
* @babel/preset-env             ^7.13.9  →  ^7.13.12
* @rollup/plugin-commonjs       ^17.1.0  →   ^18.0.0
* @rollup/plugin-node-resolve   ^11.2.0  →   ^11.2.1
* autoprefixer                  ^10.2.4  →   ^10.2.5
* clean-css-cli                 ^5.2.0  →    ^5.2.2
* eslint                        ^7.21.0  →   ^7.23.0
* eslint-plugin-unicorn         ^28.0.2  →   ^29.0.0
* globby                        ^11.0.2  →   ^11.0.3
* hugo-bin                      ^0.69.0  →   ^0.70.0
* karma                         ^6.1.1  →    ^6.3.2
* postcss                       ^8.2.6  →    ^8.2.9
* qunit                         ^2.14.0  →   ^2.14.1
* rollup                        ^2.40.0  →   ^2.44.0
* stylelint                     ^13.11.0  →  ^13.12.0

Also lock jQuery to v3.5.1 since 3.6.0 has a bug that affects at least our tests