[ie/cda] Fix error 400

[rysson]

Description of your pull request and other information

Fix error 400 on login into cda extractor. Fix cda uploader meta extractor.

Fixes #10306

Template

Before submitting a pull request make sure you have:

• [x] At least skimmed through contributing guidelines including yt-dlp coding conventions
• [x] Searched the bugtracker for similar pull requests

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

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

What is the purpose of your pull request? Check those that apply and remove the others:

• [x] 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)