audio/picard-plugins: Update to snapshot from 2021-04-13
Remove "Add Album Column" plugin and ALBUM_COLUMN option. This functionality
is now available in the base picard application.
"Apiseeds Lyrics" plugin has been replaced by "Happi.dev Lyrics" plugin.
Add "Release tag aggregation functions" plugin.
Additional info can be found at: https://picard.musicbrainz.org/plugins/