By Brittany Kriegstein From New York Daily News NEW YORK—The city’s anonymous pandemic heroes, after toiling in the COVID-19 darkness for 16 months, marched Wednesday along a sun-splashed Broadway as fellow New Yorkers cheered their ceaseless courage and commitment. The Canyon of Heroes, typically reserved for the likes of Yankees star Derek Jeter, South African leader Nelson Mandela and astronaut John Glenn, instead paid homage to the efforts of night-shift nurses, volunteer charity workers, teachers, transportation employees, police officers, firefighters and others during the long journey that began with the arrival of coronavirus in March 2020. “This is not even a once-in-a-lifetime thing,” said Kathleen Liggio, 63 of the city Medical Examiner’s Office. “Many people don’t (ever) see this. When you think of all the greats that have been through the Canyon of Heroes, this is unbelievable, really.” The grand marshal was Sandra Lindsay, director of nursing at Northwell Health in Queens …