Etherlink: test callTracer compatibility with block scout

#7420 (closed) added the callTracer option to the debug_traceTransaction, for blockscout.

This issue is about testing the implementation against blockscout. First locally, then on ghostnet.

How to build a local env : https://docs.google.com/document/d/1mPch_veh16-VRqz-JXrNEG307tRwtphrAqe2lCUzTLE/edit#heading=h.6ehlrth0499o