Custom payload in deployment

[fabn]

Details

I wrote a similar integration in my repo but is still a proof of concept. Now I found this action and I plan to move to this, however in my flow I need to store some custom data into deployment payload but this action uses a fixed one.

What do you think about giving the user the possibility to store arbitrary data into deployment payload? Also because, as far as I know there's no way to update a deployment once it has been created.