New review comment by ifreund on void-packages repository

https://github.com/void-linux/void-packages/pull/31685#discussion_r659852088

Comment:
The `libMagick` dependency is not included in the vips package we currently ship because one of the major reasons to use vips over ImageMagick is that it is much smaller/cleaner/more auditable and more suited to use with untrusted image inputs.

From the vips readme's [ImageMagick section](https://github.com/libvips/libvips#imagemagick-or-optionally-graphicsmagick):
> If you are going to be using libvips with untrusted images, perhaps in a web server, for example, you should consider the security implications of enabling a package with such a large attack surface.