refactor: merge *RequestDto with *UpdateDto

[ndr-brt]

Feature Request

currently, for the Asset, ContractDefinition and PolicyDefinition endpoints we have two different objects representing the request body for creation and update.
Specifically, the UpdateDto miss the id property, but in fact it is something that could (and maybe, should) specified in the request body (other than in the request path).

Giving this, we could remove the WrapperDto classes and related transformers.

NOTE: this could be done only after the current deprecated is removed, otherwise this will be a breaking change.

Which Areas Would Be Affected?

management api

Why Is the Feature Desired?

refactor

Solution Proposal

If possible, provide a (brief!) solution proposal.

[github-actions]

This issue is stale because it has been open for 28 days with no activity.

[ndr-brt]

superseded by #3267