Lavalink.py 5.6.0

Additions

• Added base exception that all other errors extend from.

Fixes

• Fixed a possible issue where BasePlayer._internal_pause may not have been reset if an exception was thrown before it was set to False.
  • This affected player state during node changes.
• Fixed an issue where the client would not consistently shift generic requests (i.e. client.get_tracks) to other, available nodes if any went down.

Changes

• Type-hinted support for passing an AudioTrack to an AudioTrack constructor, as a form of cloning.
• Undeprecated NodeManager.available_nodes.
• Request errors aiohttp.ClientError and asyncio.TimeoutError are re-thrown as themselves rather than as lavalink.errors.ClientError for clarity.