Closes #149: Update scenario urls for delayjs

[jeawhanlee]

Description

Fixes #149
Explain how this code impacts users. This is a follow-up of this issue

Type of change

• Bug fix (non-breaking change which fixes an issue).
• Enhancement (non-breaking change which improves an existing functionality).

Detailed scenario

Running any of the following script below will trigger the references for delayjs to be created

wp-rocket-e2e/package.json

Lines 20 to 23 in 7b589ba

	"test:delayjs:genesis": "THEME=genesis-sample-develop $npm_package_config_testCommand --tags @delayjs",
	"test:delayjs:flatsome": "THEME=flatsome $npm_package_config_testCommand --tags @delayjs",
	"test:delayjs:divi": "THEME=Divi $npm_package_config_testCommand --tags @delayjs",
	"test:delayjs:astra": "THEME=astra $npm_package_config_testCommand --tags @delayjs",

Technical description

Documentation

Adds delayjs urls for backstop to create reference anytime any delayjs related test is run.

New dependencies

N/A

Risks

N/A

Mandatory Checklist

Code validation

• I validated all the Acceptance Criteria. If possible, provide screenshots or videos.
• I triggered all changed lines of code at least once without new errors/warnings/notices.

Code style

• I did not introduce unnecessary complexity.

[Mai-Saad]

Tests are green here except for genesis mobile due to missing exclusion at BE https://wp-media.slack.com/archives/C05NH7JU4S2/p1727075603920419?thread_ts=1726838165.260239&cid=C05NH7JU4S2

[jeawhanlee]

There is a follow-up here: #151. We have more context on this thread but for now I think we are good here.