[Audio] New stuff from RLL 0.7.0 (#4529)

* New stuff from RLL 0.7.0

* discard here

* formatting

* do this properly

* make it more unique

* bump RLL

* nuke `[p]llset restport`, only `[p]llset wsport` matters

* Update setup.cfg

* properly deprecate Rest port and Ensure Nodes are properly closed upon running LLSET commands

* restore player on a attempt reconnect

* restore player as a task

* ensure we send the signal only if not playing.

* register events a little earlier

* hmmm

* ffs

* update application.yml

* fix permissions edge case

redbot/cogs/audio/core/abc.py

@@ -1,11 +1,12 @@
 from __future__ import annotations
 
 import asyncio
+import datetime
 
 from abc import ABC, abstractmethod
 from collections import Counter
 from pathlib import Path
-from typing import TYPE_CHECKING, Any, List, Mapping, MutableMapping, Optional, Tuple, Union
+from typing import Set, TYPE_CHECKING, Any, List, Mapping, MutableMapping, Optional, Tuple, Union
 
 import aiohttp
 import discord
@@ -57,6 +58,7 @@ class MixinMeta(ABC):
     _error_counter: Counter
 
     lavalink_connect_task: Optional[asyncio.Task]
+    _restore_task: Optional[asyncio.Task]
     player_automated_timer_task: Optional[asyncio.Task]
     cog_init_task: Optional[asyncio.Task]
     cog_ready_event: asyncio.Event
@@ -64,6 +66,9 @@ class MixinMeta(ABC):
     _default_lavalink_settings: Mapping
     permission_cache = discord.Permissions
 
+    _last_ll_update: datetime.datetime
+    _ll_guild_updates: Set[int]
+
     @abstractmethod
     async def command_llsetup(self, ctx: commands.Context):
         raise NotImplementedError()
@@ -122,6 +127,12 @@ class MixinMeta(ABC):
     ) -> None:
         raise NotImplementedError()
 
+    @abstractmethod
+    async def lavalink_update_handler(
+        self, player: lavalink.Player, event_type: lavalink.enums.PlayerState, extra
+    ) -> None:
+        raise NotImplementedError()
+
     @abstractmethod
     async def _clear_react(
         self, message: discord.Message, emoji: MutableMapping = None