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

libsndfile: update to 1.1.0
https://github.com/void-linux/void-packages/pull/36908

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

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#### New package
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#### Local build testing
- I built this PR locally for my native architecture, x86_64-glibc (personal project and `audacity`)
- As CI failed for x86_64-musl, I filed https://github.com/libsndfile/libsndfile/issues/830
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  - armv7l
  - armv6l-musl
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