gnu: Adjust package collection to Wrap using GUIX_PYTHONPATH.

gnu: Adjust package collection to Wrap using GUIX_PYTHONPATH.

This change was automated using:

$ git ls-files | grep .scm | \
  xargs sed 's/(getenv "PYTHONPATH")/(getenv "GUIX_PYTHONPATH")/' -i

$ git ls-files | grep .scm | \
  xargs sed 's/`("PYTHONPATH"/`("GUIX_PYTHONPATH"/' -i

* gnu/packages/admin.scm (nmap):
(dstat): Wrap using GUIX_PYTHONPATH.
* gnu/packages/audio.scm (jack-2):
(carla): Likewise.
* gnu/packages/benchmark.scm (fio): Likewise.
* gnu/packages/bioinformatics.scm (couger): Likewise.
(gess, find-circ, filtlong, nanopolish): Likewise.
* gnu/packages/cdrom.scm (cdemu-client): Likewise.
* gnu/packages/chemistry.scm (avogadro): Likewise.
* gnu/packages/connman.scm (econnman): Likewise.
* gnu/packages/cups.scm (hplip): Likewise.
* gnu/packages/debug.scm (scanmem): Likewise.
* gnu/packages/display-managers.scm (lightdm): Likewise.
* gnu/packages/ebook.scm (cozy): Likewise.
* gnu/packages/education.scm (anki): Likewise.
* gnu/packages/engineering.scm (kicad, volk, freecad): Likewise.
* gnu/packages/game-development.scm (renpy): Likewise.
* gnu/packages/games.scm (roguebox-adventures)
(seahorse-adventures, kajongg): Likewise.
* gnu/packages/gimp.scm (gimp, glimpse): Likewise.
* gnu/packages/glib.scm (itstool): Likewise.
* gnu/packages/gnome.scm (gnome-music, gtg, rhythmbox): Likewise.
(eolie, d-feet, gedit, caribou, gnome-shell, authenticator)
(gnome-todo, orca, passwordsafe, terminator, setzer)
(libratbag, komikku): Likewise.
* gnu/packages/gps.scm (gpsd): Likewise.
* gnu/packages/gtk.scm (gtk-doc): Likewise.
* gnu/packages/ibus.scm (ibus, ibus-libpinyin, ibus-anthy)
(ibus-libhangul): Likewise.
* gnu/packages/inkscape.scm (inkscape-1.0): Likewise.
* gnu/packages/linux.scm (bcc): Likewise.
* gnu/packages/mail.scm (notifymuch): Likewise.
* gnu/packages/maths.scm (units): Likewise.
* gnu/packages/music.scm (solfege): Likewise.
* gnu/packages/networking.scm (blueman): Likewise.
* gnu/packages/patchutils.scm (patchwork): Likewise.
* gnu/packages/photo.scm (rapid-photo-downloader, entangle): Likewise.
* gnu/packages/plotutils.scm (asymptote): Likewise.
* gnu/packages/presentation.scm (presentty): Likewise.
* gnu/packages/screen.scm (byobu): Likewise.
* gnu/packages/storage.scm (ceph): Likewise.
* gnu/packages/syndication.scm (liferea): Likewise.
* gnu/packages/task-management.scm (blanket): Likewise.
* gnu/packages/text-editors.scm (manuskript): Likewise.
* gnu/packages/version-control.scm (gitless, cgit, git-when-merged)
(git-imerge): Likewise.
* gnu/packages/video.scm (pitivi): Likewise.
* gnu/packages/virtualization.scm (criu): Likewise.
* gnu/packages/xfce.scm (catfish): Likewise.