Update attu version (#477)

Signed-off-by: Bennu-Li <yunmei.li@zilliz.com>

Author: Bennu

charts/milvus/Chart.yaml

@@ -3,7 +3,7 @@ name: milvus
 appVersion: "2.2.13"
 kubeVersion: "^1.10.0-0"
 description: Milvus is an open-source vector database built to power AI applications and vector similarity search.
-version: 4.0.30
+version: 4.0.31
 keywords:
   - milvus
   - elastic

charts/milvus/values.yaml

@@ -399,7 +399,7 @@ attu:
   name: attu
   image:
     repository: zilliz/attu
-    tag: v2.2.4
+    tag: v2.2.8
     pullPolicy: IfNotPresent
   service:
     annotations: {}