devscripts: missing quilt as a runtime dependency for edit-patch

[RadxaYuntian]

Without it edit-patch won't run:

❯ edit-patch --help
which: no quilt in (/home/excalibur/.cargo/bin:/home/excalibur/go/bin:/home/excalibur/.cargo/bin:/home/excalibur/go/bin:/home/excalibur/.local/bin/:/home/excalibur/.local/share/gem/ruby/3.0.0/bin:/home/excalibur/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/var/lib/flatpak/exports/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl)
no quilt found, is 'quilt' installed?

After quilt is installed:

❯ edit-patch --help
Normalizing patch path to --help
Normalizing patch name to --help.patch
No patches applied

And now I know it does not support --help.