Update BSK for C-S-S changes related to DuckPlayer

[Bunn]

Task/Issue URL: https://app.asana.com/0/1204167627774280/1207810982214900/f

Description:
Update C-S-S version

Steps to test this PR:

1. Make yourself internal User
2. Go to Settings > All Debug Options > Configuration URLs, tap the URL and use following URL: https://jsonblob.com/api/1253721903368888320 when asked
3. Open youtube.com and search for a video
4. Click on a video, then check if the m.duck-player.view-from.youtube.main-overlay pixel is sent when "Watch in Duck Player" is selected