[ie/NeteaseMusic] more metadata

[LoserFox]

IMPORTANT: PRs without the template will be CLOSED

Description of your pull request and other information

In the --embed-metadata option, add album title to the file metadata.

Closes #8530

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 d3d3824

Summary

🎵🏷️🛠️

Add more metadata fields to NetEaseMusicIE extractor. Use existing helper functions to parse the JSON response from the API and extract fields such as album_artist, album, thumbnail and average_rating.

NetEaseMusic tracks
More metadata extracted
Winter of content

Walkthrough

• Add metadata fields for NetEaseMusic tracks (link) by using traverse_obj to access the JSON response and helper functions to convert the values

[Grub4K]

Make sure to update the tests with the changes. Also try avoid force pushing, commits will be squashed upon commit, so take as many as like

[bashonly]

In the future, run the test, let it fail, and copy the test dict's missing keys/values from the error output. Do not write the download tests by hand