The deployments enterprise accepts xdelta arguments as array of strings.

The idea of this task is to accept a strict schema with xdelta arguments which does make sense, validate them, and maybe restrict the values to prevent abuse?

The arguments may be different depending on xdelta version, so check the version of the xdelta we are using in the generate-delta-worker first.

Acceptance criteria:

• as part of the xdelta configuration deployments service accepts strict schema with parameters instead of array of strings;

• deployments service validates the parameters (so it will prevent xdelta to fail because of wrong parameter value);

• decide if we should apply some limits to parameters value;