Support local automated testing with DDEV + webship-js (init-full-automated-testing + test scripts)

Problem/Motivation

The webship-js cucumber suite added to varbase_project 9.2.x runs in GitLab CI, but there is no turnkey way to build, install and run it locally with DDEV the way the 11.0.x branch supports (ddev init-full-automated-testing + ddev yarn test:chromium).

Steps to reproduce

1. Build varbase_project 9.2.x locally with DDEV.
2. There is no ddev init-full-automated-testing command and no test / test:chromium npm scripts, so running the cucumber suite locally requires reproducing the CI before_script by hand.

Proposed resolution

Add, mirroring 11.0.x:

• A .ddev/commands/web/init-full-automated-testing command that installs Varbase (classic profile) with the same components and provisioning the CI functional job uses.
• test, test:chromium, test:firefox, test:webkit, test:headed npm scripts running cucumber-js --config cucumber.js --tags "not @wip".

Remaining tasks

• ✅ File an issue about this project
• ❌ Addition/Change/Update/Fix to this project
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support on feature change/addition
• ➖ User Guide Documentation support on feature change/addition
• ➖ UX/UI designer responsibilities
• ➖ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ❌ Update Release Notes
• ✅ Release varbase_project-9.2.0

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• test: #3608527 Support local DDEV + webship-js automated testing (init-full-automated-testing + provision testing users, RTL locale and Layout Builder permissions)