By Alistair Smout LONDON (Reuters) – The suspension of Britain’s trade talks with Canada signals a tougher approach to post-Brexit trade deals by the UK that earned applause from its farmers, even as cheesemakers lost out and carmakers worried they might too. The stand-off suggested that UK Prime Minister Rishi Sunak might be less likely to sign up to trade deals that face domestic criticism than his predecessors including former leader Boris Johnson who was pilloried by Britain’s agriculture sector. Canadian farmers complain they are shut out of Britain’s beef market because of regulations ba…