Add validation on `counterPartyId` on management api endpoints

[ndr-brt]

Feature Request

Currently, the counterPartyId attribute is not mandatory in the DatasetRequest/CatalogRequest/ContractRequest/TransferRequst types.
It should be, because not adding it will result in hard-to-understand errors

Which Areas Would Be Affected?

management api

Why Is the Feature Desired?

Are there any requirements?

Solution Proposal

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

[github-actions]

This issue is stale because it has been open for 14 days with no activity.

[github-actions]

This issue is stale because it has been open for 14 days with no activity.

[github-actions]

This issue is stale because it has been open for 14 days with no activity.