message: [qa] Add cashaccount activation height argument
  Needed after
diff: @@ -28,7 +28,8 @@ def bitcoind_electrum_args():
  ELECTRUM_PORT = random.randint(40000, 60000)
  return ["-electrum=1", "-debug=electrum", "-debug=rpc",
  "-electrum.port=" + str(ELECTRUM_PORT),
  - "-electrum.monitoring.port=" + str(random.randint(40000, 60000))]
  + "-electrum.monitoring.port=" + str(random.randint(40000, 60000)),
  + "-electrum.rawarg=--cashaccount-activation-height=1"]
  class ElectrumConnection:
  def __init__(self):
  