By Eduardo Baptista and Brenda Goh BEIJING/SHANGHAI (Reuters) -Millions of Beijing residents queued up for another round of COVID-19 tests on Sunday, in what is becoming a daily routine as the Chinese capital races to contain a small but stubborn outbreak – and avoid a Shanghai-type prolonged lockdown. The commercial hub of Shanghai, which has conducted 63 million PCR tests and 126 million rapid antigen tests last week on its 25 million people, will also continue daily screening in coming days, city officials said. Regular testing is set to become a feature of daily life in many cities in Chin…