dev-util/d-feet: bump to 0.3.14

dev-util/d-feet: bump to 0.3.14

Includes various ebuild simplifications and fixes:
* UPDATE_DESKTOP avoidance not needed, upstream has had a DESTDIR
  check in there for a while now.
* 0.3.14 moved from pep8 to preferring the new name of pycodestyle;
  instead of updating the sed, just add the dependency now, as the
  whitespace tests actually pass upstream now, unlike in 0.3.13.
* Downgrade dep from yelp-tools to itstool, as we don't call eautoreconf
* Fix LICENSE to have or-later
* Remove error throwing python_fix_shebang call - not sure why it
  errors now on not finding anything to fix, but at least in 0.3.14
  it's unnecessary anyways, as $PYTHON from ebuild env is properly
  honored and the relevant shebangs are correct without any manual
  fixing.

Closes: https://bugs.gentoo.org/678768
Package-Manager: Portage-2.3.52, Repoman-2.3.12
Signed-off-by: Mart Raudsepp <leio@gentoo.org>