Puppeteer Delay is not supported

Puppeteer *Delay* feature is no longer supported.

If someone would submit a solution as a backfill (e.g. the promise timeout workaround mentioned here https://github.com/puppeteer/puppeteer/pull/11780) I would gladly publish this backward compatibility fix!

*_Originally posted by @furai in https://github.com/garris/BackstopJS/pull/1550#issuecomment-1964621218_*
👇

This update broke delay functionality.
https://github.com/garris/BackstopJS/blob/master/core/util/runPuppet.js#L178
This line is now giving errors.

Puppeteer had breaking changes reported in their release notes:
https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v22.0.0

I guess that example scripts in init also need updating.

Start at core/util/runPuppet.js around line 178, where the delay functionality now errors, and compare the Puppeteer v22.0.0 breaking changes with the promise-timeout workaround linked in the issue. Check the example scripts in init for related updates. Done means delay functionality works again as a backward-compatible fix and the affected examples remain usable.

Written by the indexing model from the issue text.