Typo in SessionEntity.ressource (should be Session.resource)

[dreusel]

This makes the field not populate properly.

https://github.com/igniterealtime/REST-API-Client/blob/2017b58e30832d96e0e941c4d75d8c8a590cecf2/src/main/java/org/igniterealtime/restclient/entity/SessionEntity.java#L10C50-L10C59