MDEV-9299 Test main.events_2 incompatible with Debian reproducibility testing framework

Debian tests are run in 2017, update the test to
use 2027 as a "future".

mysql-test/r/events_2.result

 drop database if exists events_test;
 create database events_test;
 use events_test;
-create event e_26 on schedule at '2017-01-01 00:00:00' disable do set @a = 5;
+create event e_26 on schedule at '2027-01-01 00:00:00' disable do set @a = 5;
 select db, name, body, definer, convert_tz(execute_at, 'UTC', 'SYSTEM'), on_completion from mysql.event;
 db	name	body	definer	convert_tz(execute_at, 'UTC', 'SYSTEM')	on_completion
-events_test	e_26	set @a = 5	root@localhost	2017-01-01 00:00:00	DROP
+events_test	e_26	set @a = 5	root@localhost	2027-01-01 00:00:00	DROP
 drop event e_26;
 create event e_26 on schedule at NULL disable do set @a = 5;
 ERROR HY000: Incorrect AT value: 'NULL'

mysql-test/t/events_2.test

@@ -13,7 +13,7 @@ use events_test;
 # mysql.event intact checking end
 #
 
-create event e_26 on schedule at '2017-01-01 00:00:00' disable do set @a = 5;
+create event e_26 on schedule at '2027-01-01 00:00:00' disable do set @a = 5;
 select db, name, body, definer, convert_tz(execute_at, 'UTC', 'SYSTEM'), on_completion from mysql.event;
 drop event e_26;
 --error ER_WRONG_VALUE