New review comment by classabbyamp on void-packages repository

https://github.com/void-linux/void-packages/pull/39049#discussion_r961377973

Comment:
```suggestion
homepage="https://github.com/pikepdf/pikepdf"
changelog="https://raw.githubusercontent.com/pikepdf/pikepdf/master/docs/releasenotes/version${version%%.*}.rst
```