By Nate Raymond (Reuters) -U.S. Supreme Court Justice Amy Coney Barrett on Friday again declined to block President Joe Biden’s plan to cancel billions of dollars in student debt, this time in a challenge brought by two Indiana borrowers, even as a lower court considers whether to lift a freeze it imposed on the program in a different case. Barrett denied an emergency request by the Indiana borrowers, represented by a conservative legal group, to bar the U.S. Department of Education from implementing the Democratic president’s plan to forgive debt held by qualified people who had taken loans t…