Make "october:env" command privileged.

This allows developers to use the command even if plugins are failing to boot due to missing configuration options (such as the DB configuration being incorrect). Previously, plugins which use the database in boot would prevent the command from running if the database details were incorrect.

This change removes a barrier from configuring your site correctly.

modules/system/ServiceProvider.php

@@ -135,7 +135,7 @@ protected function registerSingletons()
     protected function registerPrivilegedActions()
     {
         $requests = ['/combine/', '@/system/updates', '@/system/install', '@/backend/auth'];
-        $commands = ['october:up', 'october:update', 'october:version'];
+        $commands = ['october:up', 'october:update', 'october:env', 'october:version'];
 
         /*
          * Requests