fix(db): MariaDB 10.6+ server and connector compatibility

- Parse real MariaDB version after MySQL 5.5.5 compatibility prefix for
  DatabaseIncompatibleVersion checks.
- Relax client checks when building against MariaDB C connector
  (MARIADB_VERSION_ID); keep Oracle MySQL 8.0+ rules otherwise.
- Use mysql_stmt_bind_param on MariaDB; mysql_stmt_bind_named_param only for
  MySQL 8.3+ without MariaDB headers.
- SSL: MYSQL_OPT_SSL_ENFORCE on MariaDB connector, MYSQL_OPT_SSL_MODE elsewhere.
- Track custom_script_loader.cpp so static script link succeeds; CMake
  find_package(MySQL) requires COMPONENTS lib on CMake 3.16.

src/server/database/Database/DatabaseWorkerPool.h

@@ -32,12 +32,24 @@
 */
 #define MIN_MYSQL_CLIENT_VERSION 80000u
 
+/**
+* @def MIN_MARIADB_CLIENT_VERSION_ID
+* Minimum MariaDB connector MARIADB_VERSION_ID (10.4.0 => 100400)
+*/
+#define MIN_MARIADB_CLIENT_VERSION_ID 100400u
+
 /**
 * @def MIN_MYSQL_SERVER_VERSION
 * The minimum MySQL Server Version
 */
 #define MIN_MYSQL_SERVER_VERSION "8.0.0"
 
+/**
+* @def MIN_MARIADB_SERVER_VERSION
+* Minimum MariaDB server (version triplet after the 5.5.5- compatibility prefix)
+*/
+#define MIN_MARIADB_SERVER_VERSION "10.4.0"
+
 template <typename T>
 class ProducerConsumerQueue;