Debian: apt update not working

[gvatsal60]

This pull request makes a minor fix to the logic that checks for the presence of apt package lists on Debian-based systems in the .update.sh script.

• Corrected the find command in the update_os_pkg() function to use /var/lib/apt/lists/* instead of /var/lib/apt/lists/, ensuring it accurately counts files when checking if the apt package lists are present.

[Copilot]

Pull Request Overview

Fix logic in Debian apt lists presence check to ensure apt update runs when package lists are missing.

• Switch currently changes find path from directory to a glob, which alters the search semantics.
• Ensure the check accurately counts only top-level list files in /var/lib/apt/lists.

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}