Fix dead link and helm chart version

README.md

@@ -3,7 +3,7 @@ Dolphin Scheduler Official Website
 ==================================================================
 
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
-[![codecov](https://codecov.io/gh/apache/dolphinscheduler/branch/dev/graph/badge.svg)](https://codecov.io/gh/apache/dolphinscheduler/branch/dev)
+[![codecov](https://app.codecov.io/gh/apache/dolphinscheduler/tree/dev/graph/badge.svg)](https://app.codecov.io/gh/apache/dolphinscheduler/tree/dev)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=apache-dolphinscheduler&metric=alert_status)](https://sonarcloud.io/dashboard?id=apache-dolphinscheduler)
 [![Twitter Follow](https://img.shields.io/twitter/follow/dolphinschedule.svg?style=social&label=Follow)](https://twitter.com/dolphinschedule)
 [![Slack Status](https://img.shields.io/badge/slack-join_chat-white.svg?logo=slack&style=social)](https://s.apache.org/dolphinscheduler-slack)

README_zh_CN.md

@@ -3,7 +3,7 @@ Dolphin Scheduler Official Website
 ==================================================================
 
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
-[![codecov](https://codecov.io/gh/apache/dolphinscheduler/branch/dev/graph/badge.svg)](https://codecov.io/gh/apache/dolphinscheduler/branch/dev)
+[![codecov](https://app.codecov.io/gh/apache/dolphinscheduler/tree/dev/graph/badge.svg)](https://app.codecov.io/gh/apache/dolphinscheduler/tree/dev)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=apache-dolphinscheduler&metric=alert_status)](https://sonarcloud.io/dashboard?id=apache-dolphinscheduler)
 
 [![Stargazers over time](https://starchart.cc/apache/dolphinscheduler.svg)](https://starchart.cc/apache/dolphinscheduler)

deploy/kubernetes/dolphinscheduler/Chart.yaml

@@ -35,11 +35,11 @@ type: application
 
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
-version: 3.1.0
+version: latest
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application.
-appVersion: 3.1.0
+appVersion: latest
 
 dependencies:
 - name: postgresql