* gnu/packages/pulseaudio.scm (noisetorch): Update to 0.12.2.
[source]: Switch to maintained fork.
[arguments]: Update all ‘paths’ accordingly. Rename 'symlink-rnnoise
phase to 'copy-rnnoise-library and do so. Remove 'gen-version.go phase.
Don't explicitly return #f from phases.
[home-page]: Update to match SOURCE.