change mimimum version to 404 due to simplesamlphp needing php 8.1

Author: jay-oswald

version.php

@@ -32,4 +32,4 @@
                                     // for Totara 3.3 is the same as Moodle 3.3.
 $plugin->component = 'auth_saml2';  // Full name of the plugin (used for diagnostics).
 $plugin->maturity  = MATURITY_STABLE;
-$plugin->supported = [39, 405];     // A range of branch numbers of supported moodle versions.
+$plugin->supported = [404, 405];     // A range of branch numbers of supported moodle versions.