[eks][eks-node-monitoring-agent] Establishing dbus connection error

When installing eks-node-monitoring-agent addons to EKS cluster onto a Karpenter-provisioned bottle-rocket node, this error message shows up multiple times in pod logs

```shell
{"level":"error","ts":"2025-01-30T11:13:19Z","msg":"error in channel handler","monitor":"container-runtime","error":"establishing dbus connection, dial unix /run/systemd/private: connect: no such file or directory","stacktrace":"golang.a2z.com/EKSNodeMonitoringAgent/internal/monitor/util.(*channelHandler[...]).Start\n\t/local/p4clients/pkgbuild-const/workspace/src/EKSNodeMonitoringAgent/internal/monitor/util/subscription.go:72"}
```

Can you assist in this issue?

Reproduce the installation on an EKS cluster using a Karpenter-provisioned Bottlerocket node and inspect the pod logs. Read internal/monitor/util/subscription.go around line 72, where the reported channel-handler error originates. Done means the repeated dbus connection error is resolved or its expected behavior on Bottlerocket is documented.

Written by the indexing model from the issue text.