ref https://github.com/TryGhost/Ghost/pull/22127
The update to the Portal release process has now been tested on main, it
would be good to get Search & Comments updated to the same process so
that it's easier to reason about releasing all of them.
refs https://github.com/TryGhost/Team/issues/3504
- Removed Cypress. Tests will get replaced by Playwright
- Removed unused files and HTML files
- Updated scripts to work similar to Portal, Signup-Form
- Updated to pinned dependencies and removed unused dependencies
