feat: add new presets for contenairized and lambda environments

[lowlighter]

This PR adds two new presets:

• containerized: for containers images (e.g. Docker)
• lambdaInstance: for AWS lamda-like environements (e.g. Vercel).

The former is just a convenience alias, since chromium sandboxing must almost always be disabled with docker.
Maybe we could also default --user-data-dir=/tmp too with this preset.

The latter might interest a lot of people (and might be worth being documented in a future iteration) and offers the flags required to launch chromium on AWS lambda-like environements, such as serverless services like Vercel.

The following link shows a proof of concept of using deno + astral + chrome + vercel:
https://vercel-deno-runtime.vercel.app/#lambda_chromium.ts

There is however a small subtility though.
These environement are resources tight so you need to use a trimmed down version of chromium (like Sparticuz/chromium, which is a fork of the unmaintained alixaxel/chrome-aws-lambda) that has been compiled specifically for it, in addition to add extra optimizations flags to make it faster.

It means that you cannot use the astral downloader for it, so I created a small tool for it jsr:@libs/toolbox/download-lambda-chromium but it might be nice to integrate it directly to @astral scope. The only thing is that it's a third-party maintaining the upstream recompiled version.

The flags are mostly taken from:
https://github.com/Sparticuz/chromium/blob/dd57f035695c6773e17768176bda1910b1e39287/source/index.ts#L33-L89

[lowlighter]

Seems that https://example.com/ has changed their design and tests content must be updated

[lino-levan]

This is actually super cool. Totally see the vision here and I actually would love for the astral scope to get a dedicated downloader tool both to help resolve #164 and to add support for this cut down version of chromium. Will give this PR a proper review later, going to add this to my due app so that I keep getting pinged until I do it.