feat(infrastructure): add redis sentinel cluster

tofu/modules/redis/replication.yaml

@@ -0,0 +1,28 @@
+apiVersion: redis.redis.opstreelabs.in/v1beta2
+kind: RedisReplication
+metadata:
+  name:  redis-replication
+  namespace: ot-operators
+spec:
+  clusterSize: 3
+  podSecurityContext:
+    runAsUser: 1000
+    fsGroup: 1000
+  kubernetesConfig:
+    image: quay.io/opstree/redis:v8.2.1
+    imagePullPolicy: IfNotPresent
+    resources:
+      requests:
+        cpu: 101m
+        memory: 128Mi
+      limits:
+        cpu: 101m
+        memory: 128Mi
+  storage:
+    volumeClaimTemplate:
+      spec:
+        storageClassName: longhorn
+        accessModes: ["ReadWriteOnce"]
+        resources:
+          requests:
+            storage: 5Gi