List the Ids of the synthetics journeys added, updated, deleted, and unchanged in a push

[gsantoro]

Currently, when we push journeys to Kibana, we can only get a count of the journeys that were added, updated, removed, or unchanged in the current push command.

We would like a more detailed output where you can check the IDs of added, updated, removed, or unchanged journeys.

NODE_ENV=prod npx @elastic/synthetics push
> Pushing monitors for 'serverless-prod' project in kibana 'default' space
> bundling 0 monitors
> Monitor Diff: Added(0) Updated(0) Removed(1) Unchanged(0)

[vigneshshanmugam]

Discussed this offline with the team. We will do the following

• Pushing with debug flag will show all the monitors - created/updated in addition to the deleted monitors.
• Group them in to sections so its easier to parse on the Terminal.
• Add support for --dry-run if possible. This is an enhancement.

@devcorpio will take care of this.