fix(operators): update certificate for Victoria Metrics webhook

apps/victoriametrics/overlays/system/certificate.patch.yaml

@@ -0,0 +1,8 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: vm-serving-cert
+spec:
+  dnsNames:
+    - vm-webhook-service.victoriametrics-system.svc
+    - vm-webhook-service.victoriametrics-system.svc.cluster.local

apps/victoriametrics/overlays/system/kustomization.yaml

@@ -4,3 +4,6 @@ resources:
   - ../../base
 
 namespace: victoriametrics-system
+
+patches:
+  - path: certificate.patch.yaml