[CI]: Change update schedule to weekly

.github/workflows/update-dependencies.yml

@@ -2,7 +2,7 @@ name: Update Dependencies
 
 on:
   schedule:             # Sets a schedule to trigger the workflow
-  - cron: "0 8 */3 * *" # Every 3 days at 08:00 AM UTC (for more info on the cron syntax see https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows#schedule)
+  - cron: "0 8 */7 * *" # Every 7 days at 08:00 AM UTC (for more info on the cron syntax see https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows#schedule)
   workflow_dispatch:    # Allows the workflow to be triggered manually via the GitHub interface
 
 jobs: