docs: rework factory readme examples

[MikeMcC399]

Issues

The factory/README file contains examples that do not run and are incomplete.

1. The specified Chrome and Edge browser versions are no longer available for download and all build examples fail.
2. If the build commands are re-run they fail to install the Cypress binary due to Docker caching. Attempting to run Cypress then fails due to missing Cypress binary.
3. The run examples rely on a Cypress project which is not defined.

Changes

Versions

Example versions are updated to latest.

Component	New version
NODE_VERSION	20.14.0
YARN_VERSION	1.22.22
CYPRESS_VERSION	13.11.0
CHROME_VERSION	125.0.6422.141-1
FIREFOX_VERSION	126.0.1
EDGE_VERSION	125.0.2535.85-1

Cypress binary

npx cypress install is added, together with an explanation to ensure that the Cypress binary is also installed into the image.

Cypress project

A description of how to create a simple example Cypress E2E project is added.

Other changes

Docker compose

• removed obsolete version

Run examples

• made interactive (-it option)
• instruct to remove container after use (--rm option)

[cypress-app-bot]

• Create a Draft Pull Request if your PR is not ready for review. Mark the PR as Ready for Review when you're ready for a Cypress team member to review the PR.

[jennifer-shehane]

Thanks for updating!

[MikeMcC399]

@jennifer-shehane

Thanks for updating!

Thanks for merging! 🙂
There is more to come and I'm trying to keep the PR contents in manageable chunks for review.