MDEV-35905: Revert CONC-710 induced mysqlbinlog FIXME

CONC-710 incorrectly removed Item_result from mariadb_com.h.

Commit e41145f (of the server git repo) provided a temporary
fix to get the build working.

Commit 75d381ffb2b (of mariadb-connector-c) reverted the change
from CONC-710 in libmariadb.

This patch updates libmariadb to include the latest connector-c
fix (75d381ffb2b), and reverts the old temporary fix
(e41145f).

Reviewed By:
============
<TODO>

client/mysqlbinlog.cc

@@ -43,11 +43,6 @@
 #include "sql_priv.h"
 #include "sql_basic_types.h"
 #include <atomic>
-#if 0 /* FIXME: the following is broken for now */
-# include "mariadb_rpl.h"
-#else
-enum Item_result {STRING_RESULT,REAL_RESULT,INT_RESULT,ROW_RESULT,DECIMAL_RESULT};
-#endif
 #include "log_event.h"
 #include "compat56.h"
 #include "sql_common.h"