Library name: Librsvg

New version number: 2.54.1

The current release 2.40.x is pretty outdated compared to the latest.
It'd be nice to have support for a more recent version, latest being 2.54.1 as of writing

Compile instructions found here: https://gitlab.gnome.org/GNOME/librsvg/-/blob/main/COMPILING.md
Changelog can be found here: https://gitlab.gnome.org/GNOME/librsvg/-/blob/main/NEWS