chore(deps): update helm release metrics-server to v3.8.4

This MR contains the following updates:

Package	Update	Change
metrics-server	patch	3.8.3 -> 3.8.4

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infrastructure/kube-system/metrics-server.yaml

@@ -22,7 +22,7 @@ spec:
         kind: HelmRepository
         name: metrics-server
         namespace: kube-system
-      version: 3.8.3
+      version: 3.8.4
   interval: 5m
   values:
     replicas: 2