use puppeteer fullPage option to support dynamic height

[scytacki]

PT Story: https://www.pivotaltracker.com/story/show/188381057

Support dynamic heights for the screenshot images.

This uses puppeteer's fullPage option.

Additionally it:

• updates the version of puppeeter, chromium, and the AWS sdk.
• removes the use of Babel. Babel was out of date and seemed mostly unnecessary. Originally it was used so we could use modern JS like async/await in the javascript. Now the lambda is running on Node version 20, which has built in async/await support so there is no need to transpile for that. The only downside is that we have to manually add the "use strict;" header to each javascript file.

This code has been deployed to the staging site. The basic features can be checked with the shutterbug client demo site.
https://concord-consortium.github.io/shutterbug.js/demo/

On each demo page you have to add ?shutterbugUrl=https://api.concord.org/shutterbug-staging so it uses the staging site. For example:

https://concord-consortium.github.io/shutterbug.js/demo/dynamic-css-example.html?shutterbugUrl=https://api.concord.org/shutterbug-staging

There isn't example on that demo site that uses the new fullPage option. However can be tested by snapshotting some pages:

Without fullPage:
curl --data '{"url":"https://concord.org/about/our-impact/","width":1000,"height":800}' https://api.concord.org/shutterbug-staging

With fullPage:
curl --data '{"url":"https://concord.org/about/our-impact/","width":1000,"height":800,"fullPage":true}' https://api.concord.org/shutterbug-staging

[bgoldowsky]

From what I can tell this looks good.
I also tried the demos and they work as described 👍