Fix unit test that failed to fallback to expected MySQL context correctly since MySQL 9.0.

Author: niconoe-

tests/Lexer/ContextTest.php

@@ -65,7 +65,7 @@ public static function contextLoadingProvider(): array
                 'MySql50700',
             ],
             'MySQL fallback' => [
-                'MySql99999',
+                'MySql9897969594',
                 'MySql50700',
             ],
             'MariaDB match' => [