[skip e2e]Update values yaml for chaos test (#16870)

Signed-off-by: Nzhuwenxing <wenxing.zhu@zilliz.com>

tests/python_client/chaos/cluster-values.yaml

@@ -7,7 +7,7 @@ image:
     pullPolicy: IfNotPresent
 
 etcd:
-  replicaCount: 1
+  replicaCount: 3
 minio:
   resources:
     requests:
@@ -17,6 +17,7 @@ kafka:
   enabled: false
   name: kafka
   replicaCount: 3
+  defaultReplicationFactor: 2
 
 pulsar:
   enabled: true
@@ -119,4 +120,4 @@ pulsar:
       defaultRetentionTimeInMinutes: "10080"
       defaultRetentionSizeInMB: "8192"
       backlogQuotaDefaultLimitGB: "8"
-      backlogQuotaDefaultRetentionPolicy: producer_exception
\ No newline at end of file
+      backlogQuotaDefaultRetentionPolicy: producer_exception