fix: Use official go2rtc build

[dadav]

Prerequisites checklist

• [x] I have read the contributing guidelines.

What is the purpose of this pull request? (put an "x" next to an item)

• [ ] Documentation update
• [ ] Bug fix
• [ ] New feature
• [x] Other, please explain: MR got merged, so we don't need to use my fork anymore.

What changes did you make? (Give an overview)

Switched to official go2rtc URL.

Is there anything you'd like reviewers to focus on?

Still needs to be tested.

[andi34]

.tar.gz not exist