test: update a broken test due to PRs race (envoyproxy#35671)

Commit Message: test: update a broken test due to PRs race
Additional Description:
PR envoyproxy#35568 used an old `setup()` method call which was modified by PR
envoyproxy#35209 that was merged just before it, causing a build failure.
This PR update the test and fixes the build failure.

Risk Level: low
Testing: N/A
Docs Changes: N/A
Release Notes: N/A
Platform Specific Features: N/A

Signed-off-by: Adi Suissa-Peleg <[email protected]>

test/common/http/conn_manager_impl_test_2.cc

@@ -490,7 +490,7 @@ TEST_F(HttpConnectionManagerImplTest, DrainConnectionUponCompletionVsOnDrainTime
   Event::MockTimer* connection_duration_timer = setUpTimer();
   EXPECT_CALL(*connection_duration_timer, enableTimer(_, _));
   // Set up connection.
-  setup(false, "");
+  setup();
 
   // Create a filter so we can encode responses.
   MockStreamDecoderFilter* filter = new NiceMock<MockStreamDecoderFilter>();