Fix flaky test gp_replica_check
When there is a big lag between primary and mirror replay, gp_replica_check
will fail if the checkpoint is not replayed in about 60 seconds. Extend the
timeout to 600 seconds to reduce the chance of flaky.
/*
* How many seconds to wait for checkpoint record to be applied in standby?
*/
-#define NUM_CHECKPOINT_SYNC_TIMEOUT 60
+#define NUM_CHECKPOINT_SYNC_TIMEOUT 600
/*
* This value is used as divisor to split a sec, used to speficy sleep time
