Update installation instructions for nodejs + Puppeteer

[benholmen]

I just went through the Browsershot installation process and ran into a few issues. After reading discussion #681 I found a pretty simple solution that uses the latest versions of nodejs and Puppeteer without locking to an outdated version 17 of Puppeteer.

The critical command seems to be

npx puppeteer browsers install chrome

Which I found from the following error output from Puppeteer:

================ Error Output: ================
Error: Could not find Chrome (ver. 123.0.6312.122). This can occur if either 1. you did not perform an installation before running the script (e.g. `npx puppeteer browsers install chrome`) or 2. your cache path is incorrectly configured (which is: /home/forge/.cache/puppeteer). For (2), check out our guide on configuring puppeteer at https://pptr.dev/guides/configuration

Using the guide in this PR I was able to install Node v22, Puppeteer v22, and Chrome v123.0.6312.122, which are all the latest available version at this time.

[benholmen]

I did notice that the documentation mentions nodejs v14, while main mentions v20. It seems that the documentation site is not up to date with this repo.

[iAmKevinMcKee]

These instructions worked great for me. Would love to see this merged to your docs site. The instructions for some reason are not updated even to what is currently in master.

[freekmurze]

Thanks!