Do regular checks for healing status while scanning (#19946)

cmd/background-newdisks-heal-ops.go

@@ -464,7 +464,10 @@ func healFreshDisk(ctx context.Context, z *erasureServerPools, endpoint Endpoint
 	}
 
 	// Remove .healing.bin from all disks with similar heal-id
-	disks := z.serverPools[poolIdx].sets[setIdx].getDisks()
+	disks, err := z.GetDisks(poolIdx, setIdx)
+	if err != nil {
+		return err
+	}
 
 	for _, disk := range disks {
 		if disk == nil {