Aligned Npgsql version to 4.0.4
Aligned Npgsql version to 4.0.4

mdissel/Marten,JasperFx/Marten,mysticmind/marten,ericgreenmix/marten,mysticmind/marten,JasperFx/Marten,ericgreenmix/marten,ericgreenmix/marten,mysticmind/marten,mysticmind/marten,mdissel/Marten,JasperFx/Marten,ericgreenmix/marten