There's a merged pull request on the void-packages repository

Explicitly orphan fifechan and libxkbfile
https://github.com/void-linux/void-packages/pull/41123

Description:
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These two packages do not actually have a `maintainer` specified, not even the standard "Orphaned <orphan@voidlinux.org>" so lint on these two fails. This PR adds it.

#### Testing the changes
- I tested the changes in this PR: **briefly**