livekit: Bump rustls to 0.23 indirectly and allow consumer to provide TLS config

[kubkon]

This patch does two things:

• it bumps rustls to 0.23 used indirectly via tokio-tungstenite bumped to 0.28 and tokio-rustls bumped to 0.26
• it exposes tls_config: rustls::ClientConfig field to the consumer in livekit_api::signal_client::SignalOptions and livekit::room::RoomOptions which is then internally routed to the SignalStream when configuring the connection; setting this option requires building livekit with signal-client-tokio and rustls-tls-native-roots features enabled
• EDIT: I've had to re-shuffle the default features of livekit-api a little since livekit as a client SDK doesn't need webhooks or access-token which ends up pulling in unnecessary deps such as jsonwebtoken and ends up conflicting with our use of jsonwebtoken in other places in Zed - lemme know if that makes sense or if there is a better way!

With this patch upstreamed, we could get rid of our fork over at Zed. Lemme know what you reckon!

[CLAassistant]

All committers have signed the CLA.

[kubkon]

FWIW here's a matching PR on our end: zed-industries/zed#50205 Thought it might be useful to showcase the intended use of the proposed changes!

[ladvoc]

Thanks @kubkon! This generally looks good to me. One concern: instead of changing the default features on livekit-api, could we instead set default-features = false in the Cargo.toml for the livekit crate to exclude the unnecessary features?

[kubkon]

Thanks @kubkon! This generally looks good to me. One concern: instead of changing the default features on livekit-api, could we instead set default-features = false in the Cargo.toml for the livekit crate to exclude the unnecessary features?

Yep, makes sense! I think I actually started with that one but was on the fence which route would be better. Will fix!

[kubkon]

Actually, @ladvoc, I remember now why I went with the current approach - setting livekit-api = { workspace = true, default-features = false } in livekit crate won't take since we do not set default-features = false for livekit-api at the workspace level.