inkscape: 1.3 → 1.3.1
https://inkscape.org/news/2023/11/18/big-small-release-inkscape-131-is-out/
https://media.inkscape.org/media/doc/release_notes/1.3.1/Inkscape_1.3.1.html
https://gitlab.com/inkscape/inkscape/-/compare/INKSCAPE_1_3...INKSCAPE_1_3_1
https://gitlab.com/inkscape/extensions/-/compare/b4b9cbbb9fbd66a3789bd0cf2b67dce154f8203f...e014a9958a5bccdb377275bee0271c4c4b05e60c
https://gitlab.com/inkscape/lib2geom/-/compare/18fc32f9972dfaee597055b3226c5b7ef3bfbb4c...cf523857e48c87f9f6a09217bdf935fff457823d
No build changes; lib2geom submodule, picking the patches in parent commit.