rel: Release verion 1.3.4-rc.1 (#773)

helm/core/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v2
-appVersion: 1.3.3
+appVersion: 1.3.4-rc.1
 description: Helm chart for deploying higress gateways
 icon: https://higress.io/img/higress_logo_small.png
 home: http://higress.io/
@@ -10,4 +10,4 @@ name: higress-core
 sources:
 - http://github.com/alibaba/higress
 type: application
-version: 1.3.3
+version: 1.3.4-rc.1