Major update to github pages publisher v4.0.0

[richgreen-moj]

User Story

As a MP engineer I want to update the tech docs github page publisher to the latest version So that the platforms dependencies are kept up to date

Value / Purpose

The tech docs github page publisher has had a major upgrade (v4.0.0). We need to review the breaking changes and update to the latest version.

For more information see this Slack post

We make use of this in the publish-gh-pages repo

Useful Contacts

No response

Additional Information

In the Slack post David Read mentions that we shouldn't be using the crown logo in our docs - we should keep an eye on whether the issue he raised with CDDO has been addressed before implementing the ticket.

Proposal / Unknowns

Definition of Done

• [ ] Any breaking changes been reviewed to assess any remediation required
• [ ] Remediation completed and version updated
• [ ] Testing completed successfully
• [ ] Another team member has reviewed