[3.13] gh-145548: Don't use VMADDR_CID_LOCAL from socket (GH-145735)

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

Author: encukou

Lib/test/test_socket.py

@@ -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: