Use newer version of SVGO

[jl-stellar]

I don't know if this plugin is still getting maintenance, sadly at the moment it seems that it doesn't.
However, if in the future someone is willing to improve on the current state, an important thing would be to bump the SVGO version. At the time of writing this issue, version 3.0.2 of SVGO was current while the plugin used version 2.8.0.

One nasty bug that was fixed (or introduced, depending how you look at it) in between these versions: The plugin "cleanupIDs" was renamed to "cleanupIds" to have consistent casing across all plugin names. Of course the SVGO documentation was updated accordingly. This however means that following the SVGO documentation for using or disabling this plugin, as is recommended by the Sketch plugin, will not work.