Repository: yt-dlp
Issue: Please add support for the bandcamp.com/<USER>/feed URL (new releases of followed genres / artists) 
Labels: site-enhancement,triage

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm requesting a site-specific feature
- [X] I've verified that I'm running yt-dlp version **2023.03.04** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and 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)
- [X] 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

Cyprus

### Example URLs

https://bandcamp.com/lestephane/feed

### Provide a description that is worded well enough to be understood

When I'm logged into bandcamp and go to my /feed page, it shows a bunch of embedded players for the latest releases of artists I follow. I was hoping to feed my bandcamp session cookies to yt-dlp (through mpv) to quickly skim through new releases with my keyboard because the default bandcamp UI is horrendous.

I've tested that I'm able to download the feed page using `curl -b` and `.bandcamp.com` cookies exported from Firefox.
Then I used the same cookies file with `yt-dlp`, but it fails with **Unsupported URL**.


### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', '--cookies', '/home/lestephane/Downloads/cookies.firefox-private.txt', 'https://bandcamp.com/lestephane/feed']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2023.03.04 [392389b7d] (pip)
[debug] Python 3.10.11 (CPython x86_64 64bit) - Linux-5.19.0-43-generic-x86_64-with-glibc2.37 (OpenSSL 3.0.9 30 May 2023, glibc 2.37)
[debug] exe versions: ffmpeg 5.1.3 (setts), ffprobe 5.1.3, rtmpdump 2.4
[debug] Optional libraries: Cryptodome-3.17, brotli-1.0.9, certifi-2022.12.07, mutagen-1.46.0, secretstorage-3.3.3, sqlite3-2.6.0, websockets-10.4
[debug] Proxy map: {}
[debug] Loaded 1786 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Available version: stable@2023.03.04, Current version: stable@2023.03.04
yt-dlp is up to date (stable@2023.03.04)
[generic] Extracting URL: https://bandcamp.com/lestephane/feed
[generic] feed: Downloading webpage
WARNING: [generic] Falling back on generic information extractor
[generic] feed: Extracting information
[debug] Looking for embeds
ERROR: Unsupported URL: https://bandcamp.com/lestephane/feed
Traceback (most recent call last):
  File "/nix/store/kwpriypyy6by98sp3b4wcd1463zkag97-python3.10-yt-dlp-2023.3.4/lib/python3.10/site-packages/yt_dlp/YoutubeDL.py", line 1518, in wrapper
    return func(self, *args, **kwargs)
  File "/nix/store/kwpriypyy6by98sp3b4wcd1463zkag97-python3.10-yt-dlp-2023.3.4/lib/python3.10/site-packages/yt_dlp/YoutubeDL.py", line 1594, in __extract_info
    ie_result = ie.extract(url)
  File "/nix/store/kwpriypyy6by98sp3b4wcd1463zkag97-python3.10-yt-dlp-2023.3.4/lib/python3.10/site-packages/yt_dlp/extractor/common.py", line 694, in extract
    ie_result = self._real_extract(url)
  File "/nix/store/kwpriypyy6by98sp3b4wcd1463zkag97-python3.10-yt-dlp-2023.3.4/lib/python3.10/site-packages/yt_dlp/extractor/generic.py", line 2510, in _real_extract
    raise UnsupportedError(url)
yt_dlp.utils.UnsupportedError: Unsupported URL: https://bandcamp.com/lestephane/feed
```