Add yt-dlp Extractor Argument Support

[Kyrluckechuck]

Add yt-dlp Extractor Argument Support

Adds yt-dlp extractor argument support

Description

Youtube has recently made it impossible to use yt-dlp without accessing via PO Tokens. yt-dlp supports that, but you need to be able to provide the extractor_args parameter to the API (or --yt-dlp-args to the CLI).

This PR enables that in the Spotdl API since if you were to supply it currently it would fail.

** Note
This indirectly adds support for the CLI usage of this app directly as well.

Example can be seen here:

spotdl --cookie-file /config/cookies.txt --yt-dlp-args "--extractor-args \"youtube:player_client=web_music,default;po_token=web_music+<po_token>\"" <youtube_music_url>

Related Issue

Partially fixes #2279

Motivation and Context

See description

How Has This Been Tested?

Locally, doing simple tests.

Screenshots (if appropriate)

Before (with cookies only):

After (with cookies & po token):

Types of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project
• My change requires a change to the documentation
• I have updated the documentation accordingly
• I have read the CONTRIBUTING document
• I have read the CORE VALUES document
• I have added tests to cover my changes
• All new and existing tests passed