Setup CI for test-projects

Replaces https://github.com/quasarframework/quasar-testing/issues/2

We should setup CI for tests available into test projects, such as we're able to test AEs features via AEs themselves

We should at least cover Cypress ones since we already know how to setup them thanks to Milos, and we can link those to another project into Cypress Dashboard
Jest/Vitest tests should be simpler to setup than Cypress ones, but Jest AE doesn't seem to work with Vite right now

If possible, we should also run these tests when there's a release for app-webpack and app-vite minor (or patch?) version.
In these cases we should run only tests into the relevant test project: into test-project-vite if a new app-vite version is released and same for webpack. test-project-app won't have any new updates so it's not considered into this feature

Start with .github/workflows/tests-on-pr.yml and inspect the test-project-vite, test-project-app, and webpack test-project setup. Use the existing Cypress workflow as the reference, then determine how Cypress and the simpler Jest/Vitest tests should run and how app-vite or app-webpack releases should trigger only their relevant project tests. Done means the test projects run in CI and the requested release coverage is defined.