add delay to unit test (#1117)

Co-authored-by: tracyboehrer <tracyboehrer@users.noreply.github.com>

Author: LeeParrishMSFT

libraries/bot-builder/src/test/java/com/microsoft/bot/builder/TranscriptMiddlewareTest.java

@@ -65,9 +65,9 @@ public final void Transcript_LogActivities() {
             context.sendActivity("echo:" + context.getActivity().getText()).join();
             return CompletableFuture.completedFuture(null);
         }
-        ).send("foo").assertReply(
+        ).send("foo").delay(50).assertReply(
             (activity) -> Assert.assertEquals(activity.getType(), ActivityTypes.TYPING)
-        ).assertReply("echo:foo").send("bar").assertReply(
+        ).assertReply("echo:foo").send("bar").delay(50).assertReply(
             (activity) -> Assert.assertEquals(activity.getType(), ActivityTypes.TYPING)
         ).assertReply("echo:bar").startTest().join();