MDEV-32810 events.events_1 fails in 11.1 and above

fix test cases like

... prepare the test, create a table or a user
create event ... on schedule every 1 second ... do something ...
... verify that something was done
... cleanup drop event, table or user

here the event scheduler can manage to start the worker for the
second execution of the event, then cleanup happens
and the worker realizes that it cannot change the security context
(as the user is dropped) or cannot insert (as the table is dropped).

followup for 279b0db8c6 (that removed suppression of /Event Schedule/)

mysql-test/suite/rpl/r/rpl_invoked_features.result

@@ -1,6 +1,7 @@
 include/master-slave.inc
 [connection master]
 call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+call mtr.add_suppression("Event Scheduler: .* Duplicate entry '10' for key 'a'");
 # Create tables
 CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY, b INT, c VARCHAR(64)) ENGINE=myisam;
 INSERT INTO t1 VALUES (1,1,'1');

mysql-test/suite/rpl/t/rpl_invoked_features.test

@@ -9,6 +9,7 @@
 --source include/master-slave.inc
 
 call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+call mtr.add_suppression("Event Scheduler: .* Duplicate entry '10' for key 'a'");
 
 # --disable_warnings/--enable_warnings added before/after query 
 # if one uses UUID() function because we need to avoid warnings