chore: update default proxy version to 5.5.0

Signed-off-by: mlycore <maxwell92@126.com>
diff --git a/charts/apache-shardingsphere-proxy-charts/values.yaml b/charts/apache-shardingsphere-proxy-charts/values.yaml
index 508d7c2..a3d4af0 100644
--- a/charts/apache-shardingsphere-proxy-charts/values.yaml
+++ b/charts/apache-shardingsphere-proxy-charts/values.yaml
@@ -69,7 +69,7 @@
     pullPolicy: IfNotPresent
     ## Overrides the image tag whose default is the chart appVersion.
     ##
-    tag: "5.4.1"
+    tag: "5.5.0"
   ## @param compute.imagePullSecrets Specify docker-registry secret names as an array
   ## e.g:
   ## imagePullSecrets: