Switch to the Node.js native test runner

[jtpio]

Node.js now provides a test runner: https://nodejs.org/api/test.html

Starting with version 20, it is now considered stable:

Since we now require Node.js 20 for development (#15996), it could be interesting to investigate switch to the default Node.js test runner, as an alternative to jest.

Also given some of the recurring challenges with maintaining the jest configuration. It would also help remove a dev dependency and simplify the dev setup a bit more.

There might be some challenges depending on the jest features we are currently using.

[krassowski]

Cross-linking another discussion on testing in lumino:

• Karma is deprecated we should move on lumino#610