Upgrade to rust sdk 0.1.71 (#1905)

https://github.com/matrix-org/matrix-rust-components-kotlin/releases/tag/sdk-v0.1.71

There are breaking changes as specified in: https://github.com/vector-im/element-x-android/issues/1898 plus the one related to the poll history feature.

features/logout/impl/src/main/kotlin/io/element/android/features/logout/impl/LogoutView.kt

@@ -140,8 +140,7 @@ private fun BackupUploadState.isBackingUp(): Boolean {
     return when (this) {
         BackupUploadState.Unknown,
         BackupUploadState.Waiting,
-        is BackupUploadState.Uploading,
-        is BackupUploadState.CheckingIfUploadNeeded -> true
+        is BackupUploadState.Uploading -> true
         is BackupUploadState.SteadyException -> exception is SteadyStateException.Connection
         BackupUploadState.Done,
         BackupUploadState.Error -> false