Replaces Ubuntu 21.10 (Impish) build with build based on Ubuntu 22.04 (Jammy) for best support of new hardware. Builds latest version of partclone from source code v0.3.20, instead of OS package. This fixes 'unsupported feature' error for users of compressed BTRFS filesystems (such as Fedora Workstation 33 and newer). Removed old partclone v0.2.43 used to maximize legacy Redo Backup compatibility (modern partclone still provides good backwards compatibility). Fixed execution of Clonezilla EFI NVRAM script to better correctly handle reboot on EFI systems. Switched Firefox to using the Mozilla Team PPA repository, because new Snap packaging is incompatible with Rescuezilla's build scripts. Added ability to compress images using bzip2 algorithm.