fix withoutintl builds

Recent upgrade of highlight.js has broken the docs build on the withoutintl builds.

Refs: https://github.com/nodejs/node/issues/41077 Refs: https://github.com/nodejs/node/pull/41036

Consider this a quick fix to unblock the CI as the automated tooling will attempt to update again the next time it is run. It's getting late here on a Friday evening so maybe someone else can take a look and figure out if the break is due to highlight.js or something latent in Node.js/V8.