[ie/Qub] Fix extractor

[alexhuot1]

IMPORTANT: PRs without the template will be CLOSED

Description of your pull request and other information

Fixes the 404 error on tva/qub website. Used the fix proposed in the youtube-dl issue: ytdl-org/youtube-dl#31240

Fixes #
#4989

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
  Took the code from this repo: https://github.com/dirkf/youtube-dl
  This file exactly: https://github.com/dirkf/youtube-dl/blob/df-tva-extractor-ovrhaul/youtube_dl/extractor/tva.py

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)

[pukkandan]

The code is not following our style requirements, but youtube-dl's. Either wait for it to be merged upstream and I will pull it. Or, rewrite according to our conventions.

[dnlldl]

The code is not following our style requirements, but youtube-dl's. Either wait for it to be merged upstream and I will pull it. Or, rewrite according to our conventions.

Any update? It still doesn't work as of now with the latest release.

[alexhuot1]

I've adjusted the PR to be more precise. Thanks ;)

[bashonly]

please update the test