fix(debian): remove pybuild, use manual install in rules

- Remove dh-python and pybuild from debian/rules
- Remove python3-all from build deps
- Manual install of scripts and full_updater module
- Update Depends to use python3 directly

debian/control

@@ -2,12 +2,12 @@ Source: full-updater
 Section: admin
 Priority: optional
 Maintainer: Enzo <admin@geronzi.fr>
-Build-Depends: debhelper-compat (= 13), dh-python, python3-all, python3-venv
+Build-Depends: debhelper-compat (= 13)
 Standards-Version: 4.6.0
 
 Package: full-updater
 Architecture: all
-Depends: ${python3:Depends}, python3-textual, python3-pyperclip, python3-venv, git, pct
+Depends: python3, python3-venv, git, pct
 Description: TUI for APT/CVE updates on Proxmox host and LXC
  Full Updater is a terminal user interface (TUI) that visualizes
  available APT updates and CVEs for the Proxmox host and all LXC