TranscodingSessionControllerTest: Allow extra time to receive onError

Tests destruct TranscodingSessionController class before completing
onError.

Bug: 240537336

Test: atest TranscodingSessionController_tests
Change-Id: Iae2b152e8005850d6ef341bc84e032c58ad2676a
diff --git a/media/module/libmediatranscoding/tests/TranscodingSessionController_tests.cpp b/media/module/libmediatranscoding/tests/TranscodingSessionController_tests.cpp
index ef9c4f8..fdd327f 100644
--- a/media/module/libmediatranscoding/tests/TranscodingSessionController_tests.cpp
+++ b/media/module/libmediatranscoding/tests/TranscodingSessionController_tests.cpp
@@ -337,6 +337,8 @@
         // Should have created new transcoder.
         EXPECT_EQ(mTranscoder->getGeneration(), generation);
         EXPECT_EQ(mTranscoder.use_count(), 2);
+        // b/240537336: Allow extra time to finish onError call
+        sleep(1);
     }
 
     void testPacerHelper(int numSubmits, int sessionDurationMs, int expectedSuccess) {