[SPACETIME] [🚧 DRAFT🚧][WIP] Alerts generation in sythtrace

[MiriamAparicio]

[🚧 WIP] Spacetime

In this PR

Created Alerts synthtrace client and scenario to add alerts for hosts

What worked so far

Documents are created and can be found when searching GET alerts-observability.metrics.alerts-default/_search

What doesn't work

• The document exist but nothing is showing in the UI
• Documents are not cleaned when using --clean tag

I suspect for the documents that something is missing regarding time rages

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