feat(orchestration): added support for running juice on ubuntu 26.04

Kristian Gogorarequested to merge
353-support-ubuntu-debian-based-systems into main

Closes #353 (closed)

Features:

  • Ubuntu 26 support (new Dockerfile, CI packaging pipeline, apt-based install/update docs)
  • _package_manager.py abstraction for dispatching apt/dnf across rsyslog, telegraf, and install CLI
  • download-latest-ubuntu.sh for fetching .deb packages; proxy script now auto-selects between rpm and deb helpers
  • CI migrated from pip to uv
  • JupyterHub image pinned to 5.4.5; AlmaLinux default bumped to 10.1
Edited by Kristian Gogora

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