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

fldigi: update to 4.2.04.
https://github.com/void-linux/void-packages/pull/48278

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

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#### New package
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#### Local build testing
- I built and tested this PR locally for my native architecture, x86_64-glibc
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - x86_64-musl
  - aarch64-musl (crossbuild)
  - armv7l (crossbuild)