docs: Add changelog for each version

[xewn]

最近看到经常发布版本，但是每次更新了什么，完全不知道。方便把issues解决了的清单放在发布记录不？

[tokers]

@xewn Good idea. cc @tao12345666333 .

[tao12345666333]

Thank you for your suggestion, we will add changelog to record in subsequent versions.

I will add the changelog to each Helm chart's Chart.yaml file, as well as the CHANGLOG file