Fix stuck unread indicators. (#3023)

* Update the SDK (fixes stuck unread indicators).

* Use the SDK's cached server versions too.

ElementX/Sources/Other/Extensions/ClientBuilder.swift

@@ -24,7 +24,6 @@ extension ClientBuilder {
             .slidingSyncProxy(slidingSyncProxy: slidingSyncProxy?.absoluteString)
             .enableCrossProcessRefreshLock(processId: InfoPlistReader.main.bundleIdentifier, sessionDelegate: sessionDelegate)
             .userAgent(userAgent: UserAgentBuilder.makeASCIIUserAgent())
-            .serverVersions(versions: ["v1.0", "v1.1", "v1.2", "v1.3", "v1.4", "v1.5"]) // FIXME: Quick and dirty fix for stopping version requests on startup https://github.com/matrix-org/matrix-rust-sdk/pull/1376
         
         if setupEncryption {
             builder = builder