BEIJING, Oct 25 (Reuters) – China has rolled out a slew of policy measures in recent months to revive a stumbling economy after its post-pandemic recovery fell away quickly. Thanks to the government support, the world's second-largest economy staged a faster than expected growth in the third quarter, improving the chances Beijing can meet its growth target of around 5% for 2023. But economists say a property crisis, depressed private sector confidence, a slowdown in global growth and Sino-U.S. tensions over technology and geopolitics still pose challenges to policymakers in Beijing as they seek to sustain the growth momentum. The…