fix(deps): update dependency flutter_bloc to v9

Author: renovate[bot]

crates/ui/pubspec.yaml

@@ -17,7 +17,7 @@ dependencies:
   grpc: ^4.0.0
   fixnum: ^1.0.0
   bloc: ^8.1.0
-  flutter_bloc: ^8.1.1
+  flutter_bloc: ^9.0.0
   provider: ^6.0.0
   material_design_icons_flutter: ^7.0.0
   file_selector: ^1.0.0