feat(cli): detached runner

[noomorph]

Description

In this pull request, I have added a new feature, detached mode for test runners.

testRunner.detached [boolean]

Default: false.

When true, tells detox test to spawn the test runner in a detached mode.

This is useful in CI environments, where you want to intercept SIGINT and SIGTERM signals to gracefully shut down the test runner and the device.

Instead of passing the kill signal to the child process (the test runner), Detox will send an emergency shutdown request to all the workers, and then it will wait for them to finish.

Example

     args: {
       $0: 'jest',
       config: 'e2e/jest.config.js',
+      forceExit: process.env.CI ? true : undefined,
       _: ['e2e/'],
     },
+    detached: !!process.env.CI,
     retries: process.env.CI ? 1 : undefined,

Detox will exit indirectly through Jest using the same mechanism as in our --bail workaround (#4115). If some tests don't clean up well, --forceExit will help to shut down in time.

---

For features/enhancements:

• I have added/updated the relevant references in the documentation files.

For API changes:

• I have made the necessary changes in the types index file.

[asafkorem]

LGTM 👍🏼