feat: add labels for prometheusrule for metrics service

freeleaps/helm-pkg/metrics/values.alpha.yaml

@@ -85,6 +85,8 @@ metrics:
     name: freepeals-alpha-metrics
     enabled: false
     namespace: "freeleaps-monitoring-system"
+    labels:
+      release: kube-prometheus-stack
     rules:
       - alert: FreeleapsMetricsServiceDown
         expr: up{job="metrics-service"} == 0

freeleaps/helm-pkg/metrics/values.prod.yaml

@@ -85,6 +85,8 @@ metrics:
     name: freepeals-prod-metrics
     enabled: true
     namespace: "freeleaps-monitoring-system"
+    labels:
+      release: kube-prometheus-stack
     rules:
       - alert: FreeleapsMetricsServiceDown
         expr: up{job="metrics-service"} == 0

freeleaps/helm-pkg/metrics/values.yaml

@@ -84,6 +84,8 @@ metrics:
     name: freepeals-metrics
     enabled: true
     namespace: "freeleaps-monitoring-system"
+    labels:
+      release: kube-prometheus-stack
     rules:
       - alert: FreeleapsMetricsServiceDown
         expr: up{job="metrics-service"} == 0