Rerender puml figures

[arnoweiss]

On release, the relevant puml files, like here [1], appear to not have been rendered into a human-readable format. In the image it still says @context: https://w3id.org/dspace/v0.8/context.json

[1] https://docs.internationaldataspaces.org/ids-knowledgebase/v/dataspace-protocol/catalog/catalog.protocol#id-2.1-catalog-request-message [2] https://github.com/International-Data-Spaces-Association/ids-specification/blob/50f2a647adaba09f866d8c9e1cba462087d12771/catalog/message/diagram/catalog-request-message.puml#L10