Germany is leading the biggest rally in global bond markets since March’s banking rout as cooling inflation and a weakening economy suggest European Central Bank rate hikes are nearing an end. Borrowing costs, or bond yields, in the benchmark euro area issuer are down at least 20 basis points (bps) this week. Alongside British and U.S. peers, yields – which move inversely to bond prices – were set for their biggest weekly declines since mid-March…