MDEV-7467: sporadic failure in rpl.rpl_gtid_crash

The test case injects a DBUG that will crash the server during replication,
then does a START SLAVE. We need to use --error 0,2006,2013 on the START
SLAVE, so that we will not fail the test if the server has time to crash
before the START SLAVE returns to the client.

Fixes a failure seen in Buildbot.

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

@@ -215,6 +215,7 @@ EOF
 wait
 EOF
 SET GLOBAL debug_dbug="+d,inject_crash_before_flush_rli";
+--error 0,2006,2013
 START SLAVE;
 
 --connection server_1
@@ -239,6 +240,7 @@ EOF
 wait
 EOF
 SET GLOBAL debug_dbug="+d,inject_crash_after_flush_rli";
+--error 0,2006,2013
 START SLAVE;
 
 --connection server_1