By Balazs Koranyi and Bart H. Meijer FRANKFURT/AMSTERDAM (Reuters) – The European Central Bank ended a long-running stimulus scheme on Thursday and said it would deliver next month its first interest rate hike since 2011, followed by a potentially larger move in September. With inflation at a record-high 8.1% and still rising, the ECB now fears that price growth is broadening out and could morph into a hard-to-break wage-price spiral, heralding a new era of stubbornly higher prices. The central bank for the 19 countries that use the euro said it would end quantitative easing on July 1, then ra…