Wait for asynchronous microphone release in stream tests

tools/chatgui/tests/test_stream_publish.cpp

@@ -695,7 +695,7 @@ private slots:
         QVERIFY(errors.isEmpty()); failAudioEncoding = true;
         QTRY_VERIFY(!engine.running()); QTRY_COMPARE(errors.size(), 1);
         QVERIFY(!errors.front().front().toString().contains("restored"));
-        AudioCaptureLease microphone; QVERIFY(microphone.acquire()); microphone.release();
+        AudioCaptureLease microphone; QTRY_VERIFY_WITH_TIMEOUT(microphone.acquire(), 2000); microphone.release();
         QTRY_VERIFY_WITH_TIMEOUT(!engine.active(), 4000);
         gui_stream_stop(202); sound->shutdown();
 #else