Kas

- kas-container: Fix the fix for chatty sbuild-adduser in kas-isar

- kas-container: Silence chatty sbuild-adduser in kas-isar

- kas: git fetch always with quiet flag, suppressing false error messages
- kas: Add BB_ENV_PASSTHROUGH_ADDITIONS support
- kas: shell: Add option to keep current environment
- kas: Raise an error on missing repo refspec
- kas-container: Base containers on bullseye
- kas-container: Add pigz package to container to enable parallel compression
- kas-container: Support for sbuild in kas-isar
- kas-container: podman: Remove --pid=host
- kas-container: Start init service inside container
- kas-container: Add cleansstate and cleanall
- kas-container: Pass http_proxy et.al through sudo
- kas-container: Address shellcheck findings in container-entrypoint
- docs: Add recommendation for repo-id naming
- docs: Clarify local file include paths

- kas: Do not overwrite existing .ssh/config
- kas: Properly describe package build
- kas-container: create KAS_WORK_DIR if it not exists
- kas-container: validate KAS_REPO_REF_DIR correctness
- docs: Fix generation
- docs: Extended "layers" section in the user guide.

- kas-container: Restore oe-git-proxy location (/usr/bin)
- kas-container: Drop world-write permission from /kas folder

- kas: fix installation via pip