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

ImageMagick: update to 7.1.0.44.
https://github.com/void-linux/void-packages/pull/38326

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

#### Local build testing
- I built this PR locally for my native architecture, x86_64-glibc
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - armv6l

It seems that upstream changed the way they pack the tarballs to 7.1.0-44, for version 7.1.0.44, so I created the var _release-prefix don't know if this was the best way.