Revert "Disable the renewal reminder"

This reverts commit 6cd189f.

Author: simonhamp

app/Console/Kernel.php

@@ -12,6 +12,12 @@ class Kernel extends ConsoleKernel
      */
     protected function schedule(Schedule $schedule): void
     {
+        // Send license expiry warnings daily at 9 AM UTC
+        $schedule->command('licenses:send-expiry-warnings')
+            ->dailyAt('09:00')
+            ->onOneServer()
+            ->runInBackground();
+
         // Remove GitHub access for users with expired Max licenses
         $schedule->command('github:remove-expired-access')
             ->dailyAt('10:00')