Add version attribute for the OpenAPI descriptor
Created by: lscorcia
Fixes https://ec.europa.eu/cefdigital/tracker/projects/DSS/issues/DSS-2440 .
In OpenAPIv3, the version attribute for the descriptor is required.
Code development platform for open source projects from the European Union institutions
Created by: lscorcia
Fixes https://ec.europa.eu/cefdigital/tracker/projects/DSS/issues/DSS-2440 .
In OpenAPIv3, the version attribute for the descriptor is required.
For further information about the platform and support, please see https://code.europa.eu/info/about