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

mpv-mpris: update to 0.6
https://github.com/void-linux/void-packages/pull/35592

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, aarch64-glibc

I also updated the install directory to `etc/mpv/scripts` as stated in the [package homepage](673aff031e7cc741edea68d7b4b0103d7b031d4a55755abb9e1be5dd4ec4e969) is where mpv actually looks for scripts. It was not being located properly in `/usr/lib/mpv-mpris`.