[FR]: Need a way to run cypress_module_test() with js_run_devserver for developing tests

### What is the current behavior?

So I'm working on maintaining some Cypress tests, and I've set up a target to open the Cypress UI, but I currently need to restart the target each time I edit a spec file.

### Describe the feature

Thinking that if this could be used with `js_run_devserver` and have it sync the Cypress specs, that might be ideal.

Is there any way to do this currently?

Start by tracing the cypress_module_test() and js_run_devserver entry points to understand how Cypress specs are supplied and synchronized. Check whether the current target lifecycle requires a restart after spec edits. Done means a Cypress UI development target reflects spec changes without requiring the target to be restarted.

Written by the indexing model from the issue text.