[fix] Bad version compare

AdminBanner.php

@@ -99,7 +99,7 @@ class AdminBanner extends PluginBase {
             App()->clientScript->registerScript('AdminBannerContent', $script, CClientScript::POS_LOAD);
         }
         if (!empty($this->get('textjumbotron'))) {
-            if (version_compare(App()->getConfig('versionnumber'), '6.10.3') >= 0) {
+            if (version_compare(App()->getConfig('versionnumber'), '6.10.3') <= 0) {
                 $jumbotrocontent = "<div>" . $this->get('textjumbotron') . "</div>";
                 $script = 'if ($("#welcome-jumbotron").length) {' . "\n";
                 if ($this->get('wholejumbotron')) {