(Corrects to show forecast for 2023 euro zone GDP as flat, not 0.5% growth) By David Lawder WASHINGTON (Reuters) -The World Bank slashed its 2023 growth forecasts on Tuesday to levels teetering on the brink of recession for many countries as the impact of central bank rate hikes intensifies, Russia’s war in Ukraine continues, and the world’s major economic engines sputter. The development lender said it now expected global GDP growth of 1.7% in 2023 — the slowest pace outside the 2009 and 2020 recessions in nearly three decades. In its previous Global Economic Prospects report, in June 2022, …