Enable cron schedule for firmware auto downloader

Uncommented the schedule section to enable cron jobs for firmware downloading.

.github/workflows/firmware-autodl.yml

@@ -1,8 +1,8 @@
 name: 🎮 Firmware Auto Downloader
 
 on:
-  #schedule:
+  schedule:
-    #- cron: '*/5 * * * *'
+    - cron: '*/5 * * * *'
   workflow_dispatch:
 
 jobs: