The British government has come under varying degrees of veiled criticism from the world’s financial leaders over its disputed mini-budget proposal. The financial market turmoil triggered by the planned increased spending and tax cuts has threatened to overshadow bigger economic challenges, such as the fight against inflation and the impact of the war in Ukraine. The jibes — some direct, some more muted — came as they gathered in Washington for the autumn meetings of the International Monetary Fund (IMF), World Bank and the G20’s top finance ministers and central bankers. On Thursday, IMF Mana…