FOREX-US dollar holds near 8-month highs against euro

* Australian dollar gains on higher than expected inflation (Changes dateline from LONDON, adds details, updates prices) NEW YORK, July 23 (Reuters) - The U.S. dollar held near eight-month highs against the euro on Wednesday as worries over tougher sanctions on Russia and their potential impact on fragile euro zone growth weighed on the single currency. The dollar broke above technical ...