Improvements
- Use Aerospike Go client v5 to support Aerospike server 5.6.
- [PROD-1774] - Add new connections opened/closed statistics introduced in 5.6
client_connections_openedclient_connections_closedheartbeat_connections_openedheartbeat_connections_closedfabric_connections_openedfabric_connections_closed
- [PROD-1775] - Add new all flash statistics introduced in 5.6
index_flash_alloc_bytesindex_flash_alloc_pct
- Add other new metrics introduced in 5.6,
memory_used_set_index_bytesfail_client_lost_conflictfail_xdr_lost_conflictthreads_joinablethreads_detachedthreads_pool_totalthreads_pool_active