New review comment by abenson on void-packages repository

https://github.com/void-linux/void-packages/pull/36147#discussion_r827108469

Comment:
`depends` are only added at runtime.  `makedepends` is added at compile-time.  `xbps-src` will detect if a package links to a package and will ensure its added to the runtime, but in the case of the plugins, it's likely not linked but uses them via `dlopen`.