Update job name for azure pipelines build to use underscore
Update job name for azure pipelines build to use underscore

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