Add patch for 'libmariadbclient' fixing 'mysql_stmt_store_result' error handling

If 'mysql_stmt_store_result' fails with an error, it currently fails to
update the internal state machine for 'stmt', announcing that the fetch
operation has completed.

deps/Makefile

@@ -230,6 +230,7 @@ endif
 	cd mariadb-client-library/mariadb_client && patch -p0 < ../client_deprecate_eof.patch
 	cd mariadb-client-library/mariadb_client && patch -p0 < ../cr_new_stmt_metadata_removal.patch
 	cd mariadb-client-library/mariadb_client && patch -p0 < ../ps_buffer_stmt_read_all_rows.patch
+	cd mariadb-client-library/mariadb_client && patch -p0 < ../mariadb_stmt_store_result_err.patch
 ifeq ($(WITHASAN),1)
 	cd mariadb-client-library/mariadb_client && patch -p0 < ../mariadb_asan.patch
 endif

deps/mariadb-client-library/mariadb_stmt_store_result_err.patch

@@ -0,0 +1,14 @@
+diff --git libmariadb/mariadb_stmt.c libmariadb/mariadb_stmt.c
+index ba1617b..1c8d2e6 100644
+--- libmariadb/mariadb_stmt.c
++++ libmariadb/mariadb_stmt.c
+@@ -1838,6 +1838,9 @@ int STDCALL mysql_stmt_store_result(MYSQL_STMT *stmt)
+     stmt->result.data= NULL;
+     stmt->result.rows= 0;
+     stmt->mysql->status= MYSQL_STATUS_READY;
++    /* In case of error, stmt internal state needs to be reset. Otherwise state machine could be left in an
++       inconsistent state and further calls to 'mysql_stmt_execute' will halt. */
++    stmt->state= MYSQL_STMT_FETCH_DONE;
+     return(1);
+   }
+