fix(npm): use import to dynamically load esm modules

[yin1999]

Description

@mdn/rari cannot be installed with Node.js v22.12+, as it using require() in .js files with "type": "module" in package.json, which is currently incompatible with Node.js v22.12.0 due to stricter module handling. See: nodejs/node#56155.

Use import to dynamically load esm modules, as we have already use this in the current file:

rari/rari-npm/lib/download.js

Line 68 in 0327040

const HttpsProxyAgent = await import("https-proxy-agent");

Motivation

I cannot successfully run yarn install in mdn/content with Node.js v22.13 installed.

Additional details

I've run npm install && npm run export-schema && npm run generate-types && npm pack in rari-npm.
And replace the @mdn/rari package in mdn/content locally, which makes the installation with Node.js v22.13 successful.

[fiji-flo]

Thanks for fixing. 👍