fix: Avoid invalid url

packages/stream_chat/lib/src/client/channel.dart

@@ -1498,6 +1498,7 @@ class ChannelClientState {
               if (url == null || !url.contains('')) {
                 return false;
               }
+              try {
                 final uri = Uri.parse(url);
                 if (!uri.host.endsWith('stream-io-cdn.com') ||
                     uri.queryParameters['Expires'] == null) {
@@ -1508,6 +1509,9 @@ class ChannelClientState {
                 final expiration =
                     DateTime.fromMillisecondsSinceEpoch(secondsFromEpoch * 1000);
                 return expiration.isBefore(DateTime.now());
+              } catch (_) {
+                return false;
+              }
             }))
         .map((e) => e.id)
         .toList();