Registrar image upgraded to use ubuntu 20.04
Registrar image upgraded to use ubuntu 20.04

mitodl/configuration,stvstnfrd/configuration,edx/configuration,EDUlib/configuration,stvstnfrd/configuration,mitodl/configuration,stvstnfrd/configuration,arbrandes/edx-configuration,arbrandes/edx-configuration,EDUlib/configuration,EDUlib/configuration,edx/configuration,arbrandes/edx-configuration,mitodl/configuration,stvstnfrd/configuration,edx/configuration,edx/configuration,arbrandes/edx-configuration,EDUlib/configuration,mitodl/configuration,arbrandes/edx-configuration,stvstnfrd/configuration,EDUlib/configuration