[N1] Fix extractor for new player

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Description of your pull request and other information

ADD DESCRIPTION HERE

Fixes N1 extractor for new player on newer articles.

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 fe10f99

Summary

🌐🎬🐛

Improve N1Info extractor to handle different domains and player, and fix thumbnail issue. Add yt_dlp/extractor/n1.py test.

N1Info expands
Domains and player updated
Thumbnail fixed - fall

Walkthrough

• Updated the URL regex to support more domains for N1Info (link)
• Added extraction logic for the new Brid player, which uses JSON data and m3u8 formats (link)
• Fixed thumbnail extraction by using the correct meta tag (link)
• Kept the old extraction logic for the video tag for backward compatibility (link)
• Added a test case for a URL that uses the new Brid player (yt_dlp/extractor/n1.py) (link)