There is a new pull request by cinerea0 against master on the void-packages repository

https://github.com/cinerea0/void-packages mdBook
https://github.com/void-linux/void-packages/pull/44170

mdBook: update to 0.4.30
#### Testing the changes
- I tested the changes in this PR: **YES**


A patch file from https://github.com/void-linux/void-packages/pull/44170.patch is attached