Revert "fix(proxmoxve): add a label to the probe, rename file to probe.yaml"

This reverts commit 2aef045d4a.

cluster/apps/monitoring/proxmoxve-exporter/kustomization.yaml

@@ -3,5 +3,5 @@ kind: Kustomization
 resources:
 - ./proxmoxve-config.sops.yaml
 - ./helm-release.yaml
-- ./probe.yaml
+- ./service-monitor.yaml
 - ./dashboard.yaml

cluster/apps/monitoring/proxmoxve-exporter/service-monitor.yaml

@@ -3,8 +3,6 @@ kind: Probe
 metadata:
   name: proxmoxve-exporter
   namespace: monitoring
-  labels:
-    release: kube-prometheus-stack
 spec:
   interval: 60s
   module: default