Fix too big timeout in long poller.
Fix too big timeout in long poller.

Make it 10 seconds instead of 60. Old timeout made bots irresponsible.
JellyBrick/tgbot-cpp,JellyBrick/tgbot-cpp,reo7sp/tgbot-cpp,reo7sp/tgbot-cpp,JellyBrick/tgbot-cpp,reo7sp/tgbot-cpp