feat(k8s): update valkey-cluster references and add SSA annotations for secrets

flux/infrastructure/infra-data/helmrelease-valkey-cluster.yaml

@@ -1,7 +1,7 @@
 apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
-  name: valkey-cluster-sh
+  name: valkey-cluster
   namespace: infra-data
 spec:
   interval: 30m