MDEV-38195: Fix flaky events_restart test

Add missing error log suppressions for "error during compilation"
and "Query was empty" that occur when the event scheduler processes
events from a corrupted mysql.event table (body column altered to
longtext during the test).

Signed-off-by: Varun Deep Saini <varun.23bcs10048@ms.sst.scaler.com>

Author: Varun Deep Saini

mysql-test/suite/events/events_restart.test

@@ -4,6 +4,8 @@
 call mtr.add_suppression('Column count of mysql.event is wrong. Expected .*, found .*\. The table is probably corrupted');
 call mtr.add_suppression('Event Scheduler: An error occurred when initializing system tables. Disabling the Event Scheduler');
 call mtr.add_suppression('Event Scheduler.*shutdown.*');
+call mtr.add_suppression('Event Scheduler: error during compilation of');
+call mtr.add_suppression('Event Scheduler:.*Query was empty');
 --enable_query_log
 
 let $collation_server=`select @@collation_server`;