Add changie/changelog/create action

[mikealfare]

Description

Merge changie entries into the repo CHANGELOG.md file.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have signed the CLA
• I have run this code in development and it appears to resolve the stated issue

[emmyoop]

I find this really difficult to follow because it's not really doing much in itself. It's calling a lot of other actions. I understand you're trying to make it easy to read, but in reality it makes it harder to read because to see what it's doing, which isn't that complex, I have to go to 6 different files.