Remove version 4.1 support.

Author: jaypha

version.php

@@ -27,4 +27,4 @@
 $plugin->version   = 2023032803;        // The current plugin version (Date: YYYYMMDDXX).
 $plugin->requires  = 2015111000;        // Requires this Moodle version.
 $plugin->component = 'block_carousel';  // Full name of the plugin (used for diagnostics).
-$plugin->supported = [30, 401];
+$plugin->supported = [30, 40];