chore(llc): downgrade collection for flutter 3.27 (#5)

* downgrade collection for flutter 3.27

* export some more classes

Author: renefloor

packages/stream_core/lib/src/ws.dart

@@ -1,5 +1,12 @@
 export 'ws/client/connection_recovery_handler.dart';
 export 'ws/client/default_connection_recovery_handler.dart';
-export 'ws/client/web_socket_client.dart' show CloseCode, WebSocketClient;
+export 'ws/client/web_socket_client.dart'
+    show
+        CloseCode,
+        EventDecoder,
+        PingReguestBuilder,
+        VoidCallback,
+        WebSocketClient;
 export 'ws/client/web_socket_connection_state.dart';
+export 'ws/events/sendable_event.dart';
 export 'ws/events/ws_event.dart';

packages/stream_core/pubspec.yaml

@@ -8,7 +8,7 @@ environment:
   sdk: ^3.6.2
 
 dependencies:
-  collection: ^1.19.1
+  collection: ^1.19.0
   dio: ^5.8.0+1
   equatable: ^2.0.7
   intl: ^0.20.2