Updated go-agent docker file to pull tubular from the master branch
Updated go-agent docker file to pull tubular from the master branch

proversity-org/configuration,appsembler/configuration,gsehub/configuration,lgfa29/configuration,nunpa/configuration,mitodl/configuration,rue89-tech/configuration,rue89-tech/configuration,mitodl/configuration,pobrejuanito/configuration,lgfa29/configuration,jorgeomarmh/configuration,appsembler/configuration,appsembler/configuration,edx/configuration,hastexo/edx-configuration,proversity-org/configuration,stvstnfrd/configuration,edx/configuration,hks-epod/configuration,openfun/configuration,arbrandes/edx-configuration,rue89-tech/configuration,Stanford-Online/configuration,CredoReference/configuration,hastexo/edx-configuration,Stanford-Online/configuration,lgfa29/configuration,hks-epod/configuration,EDUlib/configuration,armaan/edx-configuration,arbrandes/edx-configuration,open-craft/configuration,Stanford-Online/configuration,rue89-tech/configuration,openfun/configuration,hks-epod/configuration,nunpa/configuration,stvstnfrd/configuration,edx/configuration,marcore/configuration,lgfa29/configuration,michaelsteiner19/open-edx-configuration,gsehub/configuration,openfun/configuration,stvstnfrd/configuration,hastexo/edx-configuration,gsehub/configuration,armaan/edx-configuration,eduStack/configuration,marcore/configuration,mitodl/configuration,appsembler/configuration,CredoReference/configuration,proversity-org/configuration,gsehub/configuration,michaelsteiner19/open-edx-configuration,Stanford-Online/configuration,EDUlib/configuration,arbrandes/edx-configuration,proversity-org/configuration,rue89-tech/configuration,marcore/configuration,eduStack/configuration,EDUlib/configuration,hks-epod/configuration,edx/configuration,michaelsteiner19/open-edx-configuration,mitodl/configuration,hastexo/edx-configuration,arbrandes/edx-configuration,Livit/Livit.Learn.EdX.configuration,pobrejuanito/configuration,jorgeomarmh/configuration,CredoReference/configuration,EDUlib/configuration,nunpa/configuration,openfun/configuration,hastexo/edx-configuration,pobrejuanito/configuration,jorgeomarmh/configuration,armaan/edx-configuration,michaelsteiner19/open-edx-configuration,stvstnfrd/configuration,eduStack/configuration,proversity-org/configuration,pobrejuanito/configuration,gsehub/configuration,Livit/Livit.Learn.EdX.configuration,CredoReference/configuration,marcore/configuration,nunpa/configuration,arbrandes/edx-configuration,jorgeomarmh/configuration,EDUlib/configuration,Stanford-Online/configuration,Livit/Livit.Learn.EdX.configuration,open-craft/configuration,hks-epod/configuration,open-craft/configuration,stvstnfrd/configuration,open-craft/configuration,armaan/edx-configuration,Livit/Livit.Learn.EdX.configuration