Bug#1062449: xdg-utils: Please package 1.2.0

[Benjamin Eikel]

Hello,

xdg-utils 1.2.1 is available. I have built it locally myself. Rough walk 
through:

sudo apt build-dep xdg-utils
gbp clone https://salsa.debian.org/freedesktop-team/xdg-utils.git
cd xdg-utils
gbp import-orig 
https://gitlab.freedesktop.org/xdg/xdg-utils/-/archive/v1.2.1/xdg-utils-v1.2.1.tar

Hackily circumvent build errors by:
- Disable tests in autotests/t-xdg-open.sh.
- Rename scripts/README to scripts/README.md in debian/rules.
- Change debian/docs to only contain README.md.

Update version in debian/changelog with the help of dch.

gbp buildpackage
sudo apt install ../xdg-utils_1.2.1-0_all.deb

With the new version, open/xdg-open works on Plasma 6.

Kind regards
Benjamin