chore: remove unneeded Cargo.lock
chore: update NixOS version used by builds.sr.ht
ft: add Nickel file with definition of jobs structure
ft: print information that this is dry run
chore: update Cargo dependencies
ft: set default ordering for size filter
chore: use xtask for generating manpages
docs: update licensing part of README
chore: add CI badge to README
chore: add license and xtask for manpage generation
chore: install manpages when building via Nix
chore(ci): add builds.sr.ht definition
ft: always print which action took place
ft(actions): add copy action
ft: read specs form the file instead of hard-coded value
docs: add manpage about ptsd.json