[monitoring] Add lineage labels to VM components

Since the VictoriaMetrics operator aggressively manages the metadata on
all owned components, the addition of labels by the lineage webhook
causes non-stop updates sent to the k8s API server. We mitigate this by
modifying the Monitoring Helm chart to set the `managedMetadata` field
on all VictoriaMetrics custom resources, where applicable.

```release-note
[monitoring] Explicitly set lineage labels on VictoriaMetrics' resources
known not to play nice when something modifies their owned resources in
flight.
```

Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>

packages/extra/monitoring/templates/alerta/alerta.yaml

@@ -232,6 +232,11 @@ kind: VMAlertmanager
 metadata:
   name: alertmanager
 spec:
+  managedMetadata:
+    labels:
+      apps.cozystack.io/application.group: apps.cozystack.io
+      apps.cozystack.io/application.kind: Monitoring
+      apps.cozystack.io/application.name: {{ $.Release.Name }}
   replicaCount: 3
   configSecret: alertmanager
   podMetadata:

packages/extra/monitoring/templates/vlogs/vlogs.yaml

@@ -4,6 +4,11 @@ kind: VLogs
 metadata:
   name: {{ .name }}
 spec:
+  managedMetadata:
+    labels:
+      apps.cozystack.io/application.group: apps.cozystack.io
+      apps.cozystack.io/application.kind: Monitoring
+      apps.cozystack.io/application.name: {{ $.Release.Name }}
   image:
     tag: v1.17.0-victorialogs
   storage:

packages/extra/monitoring/templates/vm/vmalert.yaml

@@ -5,6 +5,11 @@ kind: VMAlert
 metadata:
   name: vmalert-{{ .name }}
 spec:
+  managedMetadata:
+    labels:
+      apps.cozystack.io/application.group: apps.cozystack.io
+      apps.cozystack.io/application.kind: Monitoring
+      apps.cozystack.io/application.name: {{ $.Release.Name }}
   datasource:
     url: http://vmselect-{{ .name }}.{{ $.Release.Namespace }}.svc:8481/select/0/prometheus
   evaluationInterval: 15s

packages/extra/monitoring/templates/vm/vmcluster.yaml

@@ -5,6 +5,11 @@ kind: VMCluster
 metadata:
   name: {{ .name }}
 spec:
+  managedMetadata:
+    labels:
+      apps.cozystack.io/application.group: apps.cozystack.io
+      apps.cozystack.io/application.kind: Monitoring
+      apps.cozystack.io/application.name: {{ $.Release.Name }}
   replicationFactor: 2
   retentionPeriod: {{ .retentionPeriod | quote }}
   vminsert: