Utilize EpochSyncTime table data in sync/performance tests

[ArturWieczorek]

There is a new table in db-sync 10.0 named epoch_sync_time. This was added mainly for measuring sync performance.

cexplorer=# select * from epoch_sync_time LIMIT 10;
 id | no |   seconds    |  state  
----+----+--------------+---------
  1 |  0 |              | lagging
  2 |  1 | 31.921923928 | lagging
  3 |  2 | 24.682954687 | lagging
  4 |  3 | 28.079590176 | lagging
  5 |  4 | 26.098026245 | lagging
  6 |  5 | 23.926716802 | lagging
  7 |  6 | 23.428428523 | lagging
  8 |  7 | 22.278573772 | lagging
  9 |  8 | 20.292806986 | lagging
 10 |  9 | 20.986491094 | lagging
(10 rows)

Ticket with details

[ArturWieczorek]

This table is being used in all our cardano-db-sync sync tests.