ci: simplify counter validation

[cgrinds]

ci: ignore non Harvest error messages

[cgrinds]

With missing counters

Changed aggregate.json dashboard to include 5 bogus counters

1:02PM INF dashboard_json_test.go:184 > Dashboard validation completed dur=10.492s failed=10 numCounters=43 path=cmode/aggregate.json
1:02PM INF dashboard_json_test.go:204 > Dashboard Json validated durMs=4m22.099s exprIgnored=354 numCounters=648 restFails=5 zapiFails=5
--- FAIL: TestJsonExpression (262.10s)
    dashboard_json_test.go:162: REST counter=foo path=cmode/aggregate.json not in DB expr=sum(count(foo{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"}) by (aggr))
    dashboard_json_test.go:167: ZAPI counter=foo path=cmode/aggregate.json not in DB expr=sum(count(foo{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"}) by (aggr))
    dashboard_json_test.go:175: query validation failed counters=foo expr=sum(count(foo{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"}) by (aggr)) 
    dashboard_json_test.go:162: REST counter=foople path=cmode/aggregate.json not in DB expr=sum(foople{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"})
    dashboard_json_test.go:167: ZAPI counter=foople path=cmode/aggregate.json not in DB expr=sum(foople{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"})
    dashboard_json_test.go:175: query validation failed counters=foople expr=sum(foople{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"}) 
    dashboard_json_test.go:162: REST counter=star path=cmode/aggregate.json not in DB expr=sum(star{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"})
    dashboard_json_test.go:167: ZAPI counter=star path=cmode/aggregate.json not in DB expr=sum(star{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"})
    dashboard_json_test.go:175: query validation failed counters=star expr=sum(star{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"}) 
    dashboard_json_test.go:162: REST counter=moon path=cmode/aggregate.json not in DB expr=sum(moon{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"})
    dashboard_json_test.go:167: ZAPI counter=moon path=cmode/aggregate.json not in DB expr=sum(moon{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"})
    dashboard_json_test.go:175: query validation failed counters=moon expr=sum(moon{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"}) 
    dashboard_json_test.go:162: REST counter=flow path=cmode/aggregate.json not in DB expr=sum(flow{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"})
    dashboard_json_test.go:167: ZAPI counter=flow path=cmode/aggregate.json not in DB expr=sum(flow{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"})
    dashboard_json_test.go:175: query validation failed counters=flow expr=sum(flow{datacenter=~"$Datacenter",cluster=~"$Cluster",node=~"$Node",aggr=~"$Aggregate"}) 
    dashboard_json_test.go:188: Rest validation failures=5
    dashboard_json_test.go:194: Zapi validation failures=5
FAIL
FAIL	github.com/Netapp/harvest-automation/test	295.030s
________________________________________________________
Executed in  340.71 secs    fish           external
   usr time    7.02 secs    0.22 millis    7.02 secs
   sys time    6.80 secs    1.22 millis    6.80 secs

With no missing counters

1:27PM INF dashboard_json_test.go:204 > Dashboard Json validated durMs=3m51.25s exprIgnored=354 numCounters=648 restFails=0 zapiFails=0