fix: Fix too many values to unpack on Prometheus simulation

[igorhrcek]

Changes

This PR fixes the following error:

2025-01-21 14:28:47.573 ERROR    Failed to execute action prometheus_alert cluster_name: mai***dev, account_id: 6ff***da1, alertmanager_public_url: htt***.io, alertmanager_url: htt***093, check_prometheus_flags: Tru***, custom_annotations: [], custom_severity_map: {}, grafana_api_key: , grafana_dashboard_uid: , grafana_url: htt***.io, prometheus_url: htt***eus, signing_key: 63d***95b, alert_name: Inc***ing, severity: cri***cal, labels: rob***jor, promql_query: 0.7***>50, annotations: das***.io, runbook_url: htt***com
Traceback (most recent call last):
  File "/app/src/robusta/core/playbooks/playbooks_event_handler_impl.py", line 242, in __run_playbook_actions
    registered_action.func(execution_event, params)
  File "/venv/lib/python3.11/site-packages/robusta_playbooks/prometheus_simulation.py", line 126, in prometheus_alert
    annotations.update(parse_by_operator(prometheus_event_data.annotations, ":"))
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/venv/lib/python3.11/site-packages/robusta_playbooks/prometheus_simulation.py", line 23, in parse_by_operator
    key, val = pairs.split(operator)
    ^^^^^^^^
ValueError: too many values to unpack (expected 2)

when trying to simulate an alert using the following command:

./robusta playbooks trigger prometheus_alert --namespace=monitoring alert_name="IncidentIoSeverityTesting" severity=critical labels="robusta_incidentio_severity:major" annotations="dashboard_url=https://grafana.com,runbook_url=https://google.com"

Additionally, I've changed the operator for annotations to be the same as for labels.

Risks

None

Performance impact

None

Security impact

None

How to QA

1. Send a request

./robusta playbooks trigger prometheus_alert --namespace=monitoring alert_name="IncidentIoSeverityTesting" severity=critical labels="robusta_incidentio_severity:major" annotations="dashboard_url:https://grafana.com,runbook_url:https://google.com"

2. Check Finding information