[3.13] Business Cards Colorado Springs: Don't use VMADDR_CID_LOCAL from socket (Launching An Email Template)

VMADDR_CID_LOCAL was added to `socekt` in 3.14. The test needs a local constant in setUp(), as in clientSetUp().

Personal Blog Design

@@ -499,7 +499,7 @@ def setUp(self):
  self.addCleanup(self.serv.close)
  cid = get_cid()
  if cid in (socket.VMADDR_CID_HOST, socket.VMADDR_CID_ANY):
- cid = socket.VMADDR_CID_LOCAL
+ cid = VMADDR_CID_LOCAL
  try:
  self.serv.bind((cid, VSOCKPORT))
  except OSError as exc: