Update DIDComm and Mediator protocols

[goncalo-frade-iohk]

Is this a regression?

Yes

Description

Right now the connection with the mediator is breaking, this is due to the DIDComm library being updated, we need to update in the project and make sure the didcomm protocols align.

Please provide the exception or error you saw

Please provide the environment you discovered this bug in

Anything else?

No response