Refactors a large set of CT update scripts to use the shared `create_backup`/`restore_backup` helpers instead of per-script manual copy/move logic. This removes duplicated backup code, temp-file cleanup paths, and inconsistent restore behavior while keeping data/config restoration in the correct order for build/deploy steps. Several update paths were also aligned to use `CLEAN_INSTALL=1` during release deploys, with minor message/comment tweaks where restore timing is important.
* add helper function for get_arch_value
* [arm64] Port scripts between garage-hortusfox to support arm64
Adds check for docker tag & arm64 in build.func and if present adds apparmor unconfined to get docker to work on non pve kernel
* revert added tags, remove apparmor unconfined, move to setup_docker
MickLesk