Don't warn about high cpu usage warnigns for repro1/repro2
Use the same exclusion as dragon has in node rules:
```
roles/prometheus/files/node.rules.yml: expr: 100 - (avg by(instance) (irate(node_cpu_seconds_total{mode="idle",instance!~"dragon.archlinux.org"}[5m])) * 100) > 80
```
issue