Repair GitHub Actions Unit Tests to test all updated theme and added mariadb

Our SveltyCMS “next” branch (https://github.com/SveltyCMS/SveltyCMS/tree/next) used to run github Action test automatically on every push, but something in the workflow broke and the tests no longer pass except unite test

I need someone who can jump into the existing GitHub Actions pipeline, identify why the action stalls, and get the unit tests running cleanly again.


Deliverables
• A fixed GitHub Actions workflow file committed via pull request
• All unit tests executing automatically and passing
- All CMS Functions should be tested / fixed especially since we updated tailwindcss and added mairidb
• A brief summary of the changes so the team understands what went wrong and how you resolved it

Test on your git actions on your git account and push a pull request against the next branch when all is passing