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

Edited Dec 17, 2020 by Jelle van der Waa

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information