🐛 fix(mysql): 兼容 allowMultiQueries 连接参数

- 将 JDBC allowMultiQueries 参数映射为 MySQL driver 支持的 multiStatements

- 修复自定义 MySQL DSN 透传导致旧版本 MySQL 连接失败的问题

- 更新 MySQL 兼容 driver-agent revision

Refs #441

tools/generate-driver-agent-revisions.sh

@@ -102,6 +102,7 @@ internal/db/timeout.go)
 
   case "$driver:$identity" in
     mariadb:internal/db/mariadb_impl.go|\
+mariadb:internal/db/mysql_impl.go|\
 oceanbase:internal/db/oceanbase_impl.go|\
 oceanbase:internal/db/oracle_impl.go|\
 oceanbase:internal/db/mysql_impl.go|\