Use livekit's Rust SDK instead of their swift SDK (#13343)

See https://github.com/livekit/rust-sdks/pull/355

Todo:

* [x] make `call` / `live_kit_client` crates use the livekit rust sdk
* [x] create a fake version of livekit rust API for integration tests
* [x] capture local audio
* [x] play remote audio
* [x] capture local video tracks
* [x] play remote video tracks
* [x] tests passing
* bugs
* [x] deafening does not work
(https://github.com/livekit/rust-sdks/issues/359)
* [x] mute and speaking status are not replicated properly:
(https://github.com/livekit/rust-sdks/issues/358)
* [x] **linux** - crash due to symbol conflict between WebRTC's
BoringSSL and libcurl's openssl
(https://github.com/livekit/rust-sdks/issues/89)
* [x] **linux** - libwebrtc-sys adds undesired dependencies on `libGL`
and `libXext`
* [x] **windows** - linker error, maybe related to the C++ stdlib
(https://github.com/livekit/rust-sdks/issues/364)
        ```
libwebrtc_sys-54978c6ad5066a35.rlib(video_frame.obj) : error LNK2038:
mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't
match value 'MD_DynamicRelease' in
libtree_sitter_yaml-df6b0adf8f009e8f.rlib(2e40c9e35e9506f4-scanner.o)
        ```
    * [x] audio problems

Release Notes:

- Switch from Swift to Rust LiveKit SDK 🦀

---------

Co-authored-by: Mikayla Maki <mikayla@zed.dev>
Co-authored-by: Conrad Irwin <conrad@zed.dev>
Co-authored-by: Kirill Bulatov <kirill@zed.dev>
Co-authored-by: Michael Sloan <michael@zed.dev>

crates/collab/src/tests/test_server.rs

@@ -47,7 +47,7 @@ use workspace::{Workspace, WorkspaceStore};
 
 pub struct TestServer {
     pub app_state: Arc<AppState>,
-    pub test_live_kit_server: Arc<live_kit_client::TestServer>,
+    pub test_live_kit_server: Arc<live_kit_client::test::TestServer>,
     server: Arc<Server>,
     next_github_user_id: i32,
     connection_killers: Arc<Mutex<HashMap<PeerId, Arc<AtomicBool>>>>,
@@ -89,7 +89,7 @@ impl TestServer {
             TestDb::sqlite(deterministic.clone())
         };
         let live_kit_server_id = NEXT_LIVE_KIT_SERVER_ID.fetch_add(1, SeqCst);
-        let live_kit_server = live_kit_client::TestServer::create(
+        let live_kit_server = live_kit_client::test::TestServer::create(
             format!("http://livekit.{}.test", live_kit_server_id),
             format!("devkey-{}", live_kit_server_id),
             format!("secret-{}", live_kit_server_id),
@@ -499,7 +499,7 @@ impl TestServer {
 
     pub async fn build_app_state(
         test_db: &TestDb,
-        live_kit_test_server: &live_kit_client::TestServer,
+        live_kit_test_server: &live_kit_client::test::TestServer,
         executor: Executor,
     ) -> Arc<AppState> {
         Arc::new(AppState {