Add Hugo Build Caching for Cloudflare Workers

[scallywah]

Existing documentation URL(s)

https://developers.cloudflare.com/workers/ci-cd/builds/build-caching/#frameworks

What changes are you suggesting?

Adding the Caching Instructions for Hugo in CF Pages to CF Workers.

Additional information

https://gohugo.io/host-and-deploy/host-on-cloudflare/#article