chore: run audit on examples

[Stefan-Hanke]

If this PR is merged, it will update and cleanup the package.json files in the examples.

More specifically, I ran for d in $(ls); do cd $d; npm i; npm audit fix --force; cd -; done from the examples folder.

The command not only updated webpack-dev-server but also seemed to have reordered the entries (sorting them alphabetically) and did a minor reformatting (dropped a superfluous whitespace), but that looks ok IMO.

I did run npm run build followed by npm run serve on the add example to verify that it's still working as expected.

[Stefan-Hanke]

Fortunately the examples are built from the build_examples job.

Unfortunately those grep -v stuff seemed to not have been updated in lieu with changes of the folder names, e.g. there is also a grep -v raytrace but the directory is called raytrace-parallel oh well it's a grep so it runs fine. It just looks a bit odd...

[daxpedda]

Thanks, it's appreciated!