(Corrects currency in 5th graf, no other changes.) ZURICH (Reuters) – The Swiss National Bank will likely hold fast to the world’s lowest interest rate when it gives its latest monetary policy update on Thursday, resisting an upward trend at other global central banks, according to analysts polled by Reuters. All 33 economists polled expected the SNB to keep its policy rate locked at minus 0.75%, with the earliest change from any respondent not expected until September. Although the franc recently rose above parity against the euro, albeit briefly, no one expected the central bank to shift fro…