Migrate unit tests to jest-stencil-runner #902
Description
Is your feature request related to a problem? Please describe.
The current Stencil unit testing setup relies on Jest 29, which uses deprecated lib (glob 7.2.3).
Describe the solution you'd like
The recently introduced replacement, jest-stencil-runner relies on Jest 30 and can be used.
Additional context
This ticket has a low priority since it was officially confirmed from stencil team that jest-stencil-runner will be deprecated in favor of vitest (see stenciljs/jest-stencil-runner#10). And I would not migrate to vitest so far, since it's in early experimental development stage.