Add changelog/notes to every chart release

[aljoshare]

It would be awesome to have a changelog or notes added to every helm chart release.

Why?

Because a lot of projects heavily rely on dependency automation tooling like Renovate or Dependabot, release notes are crucial to immediately see if this upgrade will have a negative effect on my infrastructure or not. For example, the release 0.46.0 of FluentBit is "just" a minor upgrade, right? Well, it changes the version of FluentBit from v2 to v3 but without release notes this is not visible and can cause trouble if someone doesn't check the changes in detail. 😇

Thank you very much!