Set up NATS prometheus exporter to export to sysdig

**Describe the task**
To have runtime monitoring for NATS producers/consumers

**Acceptance Criteria**
- [ ] NATS metrics are exported to sysdig

**Additional context**
- https://beta-docs.developer.gov.bc.ca/sysdig-monitor-set-up-advanced-functions/#creating-promql-metrics
- https://github.com/nats-io/prometheus-nats-exporter
- Meeting pending w/ sysdig rep week of OCT 31

Start with the prometheus-nats-exporter repository and the Sysdig advanced-functions documentation linked in the issue. Confirm how NATS producer and consumer metrics should be exposed and configured as Sysdig PromQL metrics. Done means the NATS metrics are visible in Sysdig; the pending meeting may clarify the required setup.

Written by the indexing model from the issue text.