Bump Rust SDK version and adapt our code (#3068)

* Use the new SDK version
* Adapt the authentication service to the new Rust SDK APIs
* Remove `Timeline.enterSpecialMode(...)` as it's no longer necessary

libraries/matrix/test/src/main/kotlin/io/element/android/libraries/matrix/test/timeline/FakeTimeline.kt

@@ -104,12 +104,6 @@ class FakeTimeline(
         mentions
     )
 
-    var enterSpecialModeLambda: (eventId: EventId?) -> Result<Unit> = {
-        Result.success(Unit)
-    }
-
-    override suspend fun enterSpecialMode(eventId: EventId?): Result<Unit> = enterSpecialModeLambda(eventId)
-
     var replyMessageLambda: (
         eventId: EventId,
         body: String,