fix(deps): update dependency bloc to v9

Author: renovate[bot]

crates/ui/pubspec.yaml

@@ -16,7 +16,7 @@ dependencies:
   protobuf: ^2.1.0
   grpc: ^4.0.0
   fixnum: ^1.0.0
-  bloc: ^8.1.0
+  bloc: ^9.0.0
   flutter_bloc: ^8.1.1
   provider: ^6.0.0
   material_design_icons_flutter: ^7.0.0