This PR bumps the revision of the `livekit-rust-sdks` crate. I was running into issue where Cargo was stuck on "Updating git submodule `https://chromium.googlesource.com/libyuv/libyuv`". I resolved the issue by forking `libyuv` to https://github.com/zed-industries/libyuv and updating our `livekit-rust-sdks` fork to use it in https://github.com/zed-industries/livekit-rust-sdks/pull/4. Release Notes: - N/A