Demo video on website is not playable.

[kriswest]

Describe the bug
The demo video on the website appears to be broken at present.

To Reproduce

Visit the Git Proxy website and hit the 'Watch the demo button'

Expected behavior

The demo video is playable

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Browser [e.g. stock browser, safari]: Edge 138.0.3351.95 / Chrome 138.0.7204.158

Additional context

This was identified when reviewing #1131, which doesn't seem to affect it.