MDEV-29866: Add RESET MASTER to clear possible remaining binlog from previous test

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

+RESET MASTER;
 #
 # Verify that SET string values and character sets can be printed correctly
 #

mysql-test/suite/binlog/r/binlog_table_map_optional_metadata_ucs2.result

+RESET MASTER;
 #
 # Verify that SET string values and character sets can be printed correctly
 #

mysql-test/suite/binlog/r/binlog_table_map_optional_metadata_utf32.result

+RESET MASTER;
 #
 # Verify that SET string values and character sets can be printed correctly
 #

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

@@ -20,6 +20,7 @@
 --let $MYSQLD_DATADIR= `select @@datadir`
 --let $binlog_file= $MYSQLD_DATADIR/master-bin.000001
 
+RESET MASTER;
 --echo #
 --echo # Verify that SET string values and character sets can be printed correctly
 --echo #

mysql-test/suite/binlog/t/binlog_table_map_optional_metadata_ucs2.test

@@ -21,6 +21,7 @@
 --let $MYSQLD_DATADIR= `select @@datadir`
 --let $binlog_file= $MYSQLD_DATADIR/master-bin.000001
 
+RESET MASTER;
 --echo #
 --echo # Verify that SET string values and character sets can be printed correctly
 --echo #

mysql-test/suite/binlog/t/binlog_table_map_optional_metadata_utf32.test

@@ -21,6 +21,7 @@
 --let $MYSQLD_DATADIR= `select @@datadir`
 --let $binlog_file= $MYSQLD_DATADIR/master-bin.000001
 
+RESET MASTER;
 --echo #
 --echo # Verify that SET string values and character sets can be printed correctly
 --echo #