logictest: fix fk_cascade_race_150282

In #150291 we added subtest `fk_cascade_race_150282` which exercises FK
checks performed by concurrent Serializable and Read Committed
transactions. Unfortunately thanks to this test we've discovered that
the locking added in #150291 is insufficient for preventing all FK
violations. We need to turn on the disabled parent-FK-check locking for
the Serializable transaction.

This commmit fixes subtest `fk_cascade_race_150282` by turning on these
settings for the Serializable transaction:
- `enable_implicit_fk_locking_for_serializable`
- `enable_shared_locking_for_serializable`
- `enable_durable_locking_for_serializable`

Informs: #151663

Release note: None

Author: michae2

pkg/ccl/logictestccl/testdata/logic_test/fk_read_committed

@@ -140,6 +140,9 @@ WITH sleep AS (SELECT pg_sleep(1)) DELETE FROM parent_150282@parent_150282_i_idx
 user testuser
 
 statement ok
+SET enable_implicit_fk_locking_for_serializable = on;
+SET enable_shared_locking_for_serializable = on;
+SET enable_durable_locking_for_serializable = on;
 INSERT INTO child_150282 VALUES (4, 1);
 
 user root
@@ -176,6 +179,9 @@ WITH sleep AS (SELECT pg_sleep(1)) UPDATE parent_150282 SET p = 4 WHERE i = 2;
 user testuser
 
 statement ok
+SET enable_implicit_fk_locking_for_serializable = on;
+SET enable_shared_locking_for_serializable = on;
+SET enable_durable_locking_for_serializable = on;
 INSERT INTO child_150282 VALUES (4, 1);
 
 user root