[Bug Report] Playing a m3u file from a URL only plays the first song

**Describe the bug**
When a m3u file is played, the bot only plays the first song

**To Reproduce**
1: host a m3u file and some mp3 files somewhere
2: ~play https://example.com/play.m3u

**Expected behavior**
I'd expect the bot to load everything from the playlist

**Debug Info**
```
System Properties:
java.version = 11.0.6
java.vm.name = OpenJDK 64-Bit Server VM
java.vm.specification.version = 11
java.runtime.name = OpenJDK Runtime Environment
java.runtime.version = 11.0.6+10-post-Debian-1deb10u1
java.specification.version = 11
os.arch = amd64
os.name = Linux

JMusicBot Information:
Version = 0.2.7
Owner = 266140088138858496
Prefix = @mention
AltPrefix = null
MaxSeconds = 0
NPImages = false
SongInStatus = false
StayInChannel = false
UseEval = false
UpdateAlerts = true

Dependency Information:
JDA Version = 3.8.3_464
JDA-Utilities Version = 2.1.5
Lavaplayer Version = 1.3.34

Runtime Information:
Total Memory = 126
Used Memory = 45

Discord Information:
ID = 689558256548446317
Guilds = 1
Users = 31

# Actually a docker container
```

The m3u file contains just links, one on each line, all mp3s. It also has `#EXTM3U` on the first line as per spec

The report names no source file, test, or entry point. Start by reproducing the issue with a hosted m3u file containing multiple MP3 links, then trace how the ~play command handles playlist URLs. Done means the bot loads and plays every listed song rather than only the first.

Written by the indexing model from the issue text.