A great feature would be if the notification webhook will have 2 additional improvements:

1. Define that the webhook has to be acknowledged via 2xx return code

   Implementation would be as a configure option notifier.acknowledge with true or false inside the workspace.yml if webhooks are a fire and forget or wait for 2xx response.

2. Define global Trace ID via Environment variable.

   Currently it is implemented that every pipeline run will calculates it's own UUID for every pipeline run.
   In the scenario that we are splitting the jobs across different machines, moon ci --jobs --jobsTotal, it would be great that the user can calculate it's own "CI ID" before executing the moon commands.

   With this the data can be analysed across machines.

@milesj: If you are agreeing that this is feature makes sense, I can provide the merge request.