[ie/beatbump] Add new domain and update tests

[seproDev]

IMPORTANT: PRs without the template will be CLOSED

Description of your pull request and other information

Site changed from beatbump.ml to beatbump.io, probably due to .ml returning to mali from Freenom.

Template

Before submitting a pull request make sure you have:

• At least skimmed through contributing guidelines including yt-dlp coding conventions
• Searched the bugtracker for similar pull requests
• Checked the code with flake8 and ran relevant tests

In order to be accepted and merged into yt-dlp each piece of code must be in public domain or released under Unlicense. Check all of the following options that apply:

• I am the original author of this code and I am willing to release it under Unlicense
• I am not the original author of this code but it is in public domain or released under Unlicense (provide reliable evidence)

What is the purpose of your pull request?

• Fix or improvement to an extractor (Make sure to add/update tests)
• New extractor (Piracy websites will not be accepted)
• Core bug fix/improvement
• New feature (It is strongly recommended to open an issue first)

Copilot Summary

🤖 Generated by Copilot at 73643b0

Summary

🌐🎵🛠️

Improved BeatBump extractor to handle multiple domains and provide better metadata. Updated beatbump.py with new classes, tests, and warnings.

Walkthrough

• Update the _VALID_URL regexes for both BeatBumpVideoIE and BeatBumpPlaylistIE classes to support the .ml and .io domains and the different playlist types (link, link)
• Remove the uploader_url field from the test case for BeatBumpVideoIE, as it is not relevant for the extractor (link)
• Add the channel_is_verified and heatmap fields to the test case for BeatBumpVideoIE, as they are new features of the yt-dlp extractor (link)
• Add a new test case for the .io domain for BeatBumpVideoIE, with the only_matching flag set to True (link)
• Update the track, uploader, uploader_id, modified_date, uploader_url, title, tags, channel_url, and channel_is_verified fields for the test cases for BeatBumpPlaylistIE, as they may differ from the YouTube values (link, link, link, link, link)
• Add the expected_warnings field to the test cases for BeatBumpPlaylistIE, as the extractor may emit a warning message that YouTube Music is not directly supported (link, link, link)
• Add a new test case for the .io domain for BeatBumpPlaylistIE, with the only_matching flag set to True (link)