cmd/scollector: fix dotnet.sql.hard_disconnects metric
cmd/scollector: fix dotnet.sql.hard_disconnects metric

bosun-monitor/bosun,mhenderson-so/bosun,bosun-monitor/bosun,bosun-monitor/bosun,mhenderson-so/bosun,bookingcom/bosun,bookingcom/bosun,bookingcom/bosun,mhenderson-so/bosun,bookingcom/bosun,mhenderson-so/bosun,mhenderson-so/bosun,mhenderson-so/bosun,bookingcom/bosun,bosun-monitor/bosun,bosun-monitor/bosun,bookingcom/bosun,bosun-monitor/bosun