Nam Vu

Results 2 issues of Nam Vu

## Description - `testutils` uses [`markdown-loader-jest`](https://github.com/gpincheiraa/markdown-loader-jest), a 5 years old lib that locks `marked` to ^0.3.9, vulnerable to the severe https://github.com/advisories/GHSA-rrrm-qjm4-v8hf - Old versions of `package-json` in `buildutils` and `lighthouse`...

bug

* Deno KV to replace JSON file cache (Deno 1.32+, https://deno.com/blog/v1.33#built-in-kv-database) * ~~`Deno.Command` replaces `Deno.run` (will be deprecated in Deno v2)~~ cherry-picked