Fix node exporter name

When we query the node exporter endpoint, we noticed that the nodename from http-proxy and ood-gpfs5 have hash at the end which is different from ssh-proxy.

$ for ip in 172.20.10.{32,6,20}; do echo $ip; curl -s http://$ip:9100/metrics | grep nodename | awk -F= '{print $4}' | awk -F. '{print $1}' | tr -d '"'; done

172.20.10.32
ssh-proxy

172.20.10.6
http-proxy-edbc74b

172.20.10.20
ood-2101a36

added Sprint 25-12 label

changed the description

assigned to @krish94

changed milestone to %Cutover to proxy nodes for production Cheaha access