Upgrade didcomm to v2.1

[amagyar-iohk]

Proposed feature

Updated didcomm protocol to remove the typ field.

Feature description

FabioPinheiro/scala-did#164

Anything else?

No response

[amagyar-iohk]

Moved back to QA

Relates to https://github.com/beatt83/didcomm-swift/releases/tag/0.1.13

[amagyar-iohk]

Upgrading to https://github.com/beatt83/didcomm-swift/releases/tag/0.1.14 didn't solve the issue. New fix will be released