add isReleased to the getCollection useCase

[Ellen Kraffmiller]

For the SPA, we need to display an 'Unpublished' label on the Collections page, if the collection hasn't been released. To do this we need to add an isReleased field to the payload of the getCollection useCase.

This issue depends on adding the field to the API: IQSS/dataverse#10448

[Guillermo Portas]

The required API extension is already in QA, removing the waiting label.