Merge branch 'task/cht-1264-fix-removeChatVideoListener' into 'releas…

…e/v5.3.0'

CHT-1264. Crash for iOS Release Candidate 14.6 and Android 13.3(241501158) (hotfix for v5.3.0)

See merge request megachat/MEGAchat!1931

src/megachatapi_impl.cpp

@@ -6960,7 +6960,7 @@ void MegaChatApiImpl::removeChatVideoListener(MegaChatHandle chatid,
     }
     else if (videoResolution == rtcModule::VideoResolution::kHiRes || videoResolution == rtcModule::VideoResolution::kLowRes)
     {
-        auto listeners = videoResolution == rtcModule::VideoResolution::kHiRes
+        auto& listeners = videoResolution == rtcModule::VideoResolution::kHiRes
                        ? mVideoListenersHiRes
                        : mVideoListenersLowRes;