fix: missing fault tolerance value

Author: td-famedly

lib/src/frame_cryptor_impl.dart

@@ -192,6 +192,7 @@ class KeyProviderImpl implements KeyProvider {
           'sharedKey': options.sharedKey,
           'ratchetSalt': base64Encode(options.ratchetSalt),
           'ratchetWindowSize': options.ratchetWindowSize,
+          'failureTolerance': options.failureTolerance,
           if (options.uncryptedMagicBytes != null)
             'uncryptedMagicBytes': base64Encode(options.uncryptedMagicBytes!),
           'keyRingSize': options.keyRingSize,