update cuda to 10.2 for dashboard
According to vtk-m#613 (closed), cuda 10.1 is no longer supported by VTK-m. VTK dashboard should be updated to 10.2 or better.
According to vtk-m#613 (closed), cuda 10.1 is no longer supported by VTK-m. VTK dashboard should be updated to 10.2 or better.