kvserver: unskip and deflake TestShowTraceReplica

This test asserts on replica placement. By default, the replicate queue
can take up to 10 minutes to execute config changes, which can fail the
test.

This patch speeds up the replicate queue. It also skips the test under
stressrace and deadlock, since it is timing sensitive.

Epic: none
Release note: None

pkg/sql/show_trace_replica_test.go

@@ -15,6 +15,7 @@ import (
 	"fmt"
 	"reflect"
 	"testing"
+	"time"
 
 	"github.com/cockroachdb/cockroach/pkg/base"
 	"github.com/cockroachdb/cockroach/pkg/config/zonepb"
@@ -34,7 +35,8 @@ func TestShowTraceReplica(t *testing.T) {
 	defer leaktest.AfterTest(t)()
 	defer log.Scope(t).Close(t)
 
-	skip.WithIssue(t, 98598)
+	skip.UnderStressRace(t) // too slow
+	skip.UnderDeadlock(t)   // too slow
 
 	const numNodes = 4
 
@@ -44,6 +46,7 @@ func TestShowTraceReplica(t *testing.T) {
 	ctx := context.Background()
 	tsArgs := func(node string) base.TestServerArgs {
 		return base.TestServerArgs{
+			ScanMaxIdleTime: 10 * time.Millisecond, // speed up replicate queue
 			Knobs: base.TestingKnobs{
 				Server: &server.TestingKnobs{
 					DefaultZoneConfigOverride:       &zoneConfig,