Stop the cli when CD task fails during deployment

[edwardrf]

Fixes https://github.com/DefangLabs/defang-mvp/issues/747

Could not setup event bridge rule as cd task is running in a per account shared cluster. Ref #698
Fixes nil pointer issue during tail in #692

Sample Error message when CD task fails:

2024-09-26T13:56:36.040000-07:00 cd pulumi  ** error: the stack is currently locked by 1 lock(s). Either wait for the other process(es) to end or delete the lock file with `pulumi cancel`.
 - Tail failed with EssentialContainerExited: Essential container in task exited with code 255
Error: EssentialContainerExited: Essential container in task exited with code 255

2024-09-26T13:50:54.249000-07:00 cd pulumi     pulumi:pulumi:Stack dayifunet-beta running error: update canceled
2024-09-26T13:52:34.262000-07:00 cd pulumi Timeout waiting for children to exit, exiting
 - Tail failed with UserInitiated: Task stopped by user
Error: UserInitiated: Task stopped by user