Log message:
graphics/ruby-youplot: update to 0.4.6

0.4.6 (2024-07-20)

* Fix a missing link by @TO226 in #37
* Added Guix installation by @gemmaro in #40
* Add examples that work offline to the README by @kojix2 in #42
* readme: fix typo for "-o" option by @muxator in #47
* Fix typo: baplot -> barplot by @szarnyasg in #50
* docs: add nix command to installation by @thenbe in #51