Delete and update deployments?

### What problem are you trying to solve?

Hi, when looking at the API documentation (and indeed the dashboard) it appears that we can only create new deployments.

There is no documented way to delete or update the old deployment.

This strikes me as risky - if there's a bad build, leaked secret, etc. it just persists?

### Describe the solution you'd like

Ability to explicitly delete deployments.

Do you also have any recommendations for users iterating on code (e.g. run it with eval?) - it seems unlikely that every time the user saves code the correct thing is to create a deployment.

### Describe alternatives you've considered

NA

### Documentation, Adoption, Migration Strategy

The /delete equivalent to the get deployment details endpoint