Repository: yt-dlp
Issue: Twitch - download sub-only vods (without login)
Labels: site-enhancement,triage

### Checklist

- [X] I'm reporting a site feature request
- [X] I've verified that I'm running yt-dlp version **2022.04.08** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [X] I've checked that all provided URLs are alive and playable in a browser
- [X] I've searched the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues including closed ones. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [ ] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

_No response_

### Example URLs

![Capture](https://user-images.githubusercontent.com/101814257/162445961-e60bbc21-7ef6-4926-a4b0-cf335e0f1264.PNG)


### Description

TwitchRecover can do this, can this feature be implemented on yt-dlp?

TwitchRecover: https://github.com/twitchrecover/twitchrecover

### Verbose log

```shell
D:\youtube-dl>yt-dlp.exe -vU https://www.twitch.tv/videos/1448256575
[debug] Command-line config: ['-vU', 'https://www.twitch.tv/videos/1448256575']
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, err utf-8, pref cp1252
[debug] yt-dlp version 2022.04.08 [7884ade] (win_exe)
[debug] Python version 3.8.10 (CPython 64bit) - Windows-10-10.0.19043-SP0
[debug] Checking exe version: ffmpeg -bsfs
[debug] Checking exe version: ffprobe -bsfs
[debug] exe versions: ffmpeg n5.0-ffmpeg-windows-build-helpers (fdk,setts), ffprobe n5.0-ffmpeg-windows-build-helpers, phantomjs 2.1.1, rtmpdump 2.3
[debug] Optional libraries: brotli, certifi, Cryptodome, mutagen, sqlite, websockets
[debug] Proxy map: {}
Latest version: 2022.04.08, Current version: 2022.04.08
yt-dlp is up to date (2022.04.08)
[debug] [twitch:vod] Extracting URL: https://www.twitch.tv/videos/1448256575
[twitch:vod] 1448256575: Downloading stream metadata GraphQL
[twitch:vod] 1448256575: Downloading video access token GraphQL
[twitch:vod] 1448256575: Downloading m3u8 information
ERROR: [twitch:vod] 1448256575: Failed to download m3u8 information: HTTP Error 403: Forbidden (caused by <HTTPError 403: 'Forbidden'>); please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
  File "yt_dlp\extractor\common.py", line 641, in extract
  File "yt_dlp\extractor\twitch.py", line 395, in _real_extract
  File "yt_dlp\extractor\common.py", line 2129, in _extract_m3u8_formats
  File "yt_dlp\extractor\common.py", line 2140, in _extract_m3u8_formats_and_subtitles
  File "yt_dlp\extractor\common.py", line 800, in _download_webpage_handle
  File "yt_dlp\extractor\common.py", line 785, in _request_webpage

  File "yt_dlp\extractor\common.py", line 767, in _request_webpage
  File "yt_dlp\YoutubeDL.py", line 3601, in urlopen
  File "urllib\request.py", line 531, in open
  File "urllib\request.py", line 640, in http_response
  File "urllib\request.py", line 569, in error
  File "urllib\request.py", line 502, in _call_chain
  File "urllib\request.py", line 649, in http_error_default
urllib.error.HTTPError: HTTP Error 403: Forbidden
```