ci(package_updates): re-enable after fixing build regressions

The regression was fixed in 4fd4e48

Essentially a revert of 00d199e.

Author: thunder-coding

.github/workflows/package_updates.yml

@@ -14,6 +14,8 @@ on:
     - 'packages/**'
     - 'root-packages/**'
     - 'x11-packages/**'
+  schedule:
+    - cron: "0 */6 * * *"
   workflow_dispatch:
     inputs:
       packages: