同步SDK文件夹，本地数据库mmb文件

vendor/maxmind-db/reader/src/MaxMind/Db/Reader/InvalidDatabaseException.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MaxMind\Db\Reader;
+
+/**
+ * This class should be thrown when unexpected data is found in the database.
+ */
+// phpcs:disable
+class InvalidDatabaseException extends \Exception {}