Fix daemon test close api.

tests/testdaemon.nim

@@ -31,6 +31,8 @@ proc connectStreamTest(): Future[bool] {.async.} =
   doAssert(sent == len(test) + 2)
   var check = await wait(testFuture, 10000)
   doAssert(check == test)
+  await api1.close()
+  await api2.close()
   result = true
 
 when isMainModule:
@@ -40,4 +42,4 @@ when isMainModule:
         waitFor(identitySpawnTest()) == true
     test "Connect/Accept peer/stream test":
       check:
-        waitFor(connectStreamTest()) == true
+        waitFor(connectStreamTest()) == true