MDEV-29402: Test sequence binlog.binlog_mdev717 binlog.binlog_mysqlbinlog_raw_flush fails

Reset the GTID sequence at the start of test so earlier run tests does not
influence the expected GTID sequence.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>

mysql-test/suite/binlog/r/binlog_mysqlbinlog_raw_flush.result

+RESET MASTER;
 #
 # MDEV-30698 Cover missing test cases for mariadb-binlog options
 #            --raw [and] --flashback

mysql-test/suite/binlog/t/binlog_mysqlbinlog_raw_flush.test

@@ -20,6 +20,8 @@
 
 --source include/linux.inc
 --source include/have_log_bin.inc
+# Test needs to reset the binlog as it is checking specific GTID.
+RESET MASTER;
 
 --echo #
 --echo # MDEV-30698 Cover missing test cases for mariadb-binlog options