Bump pigeon from 2.0.3 to 9.0.0 in /add_to_app/books/flutter_module_books#547

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dependabot/pub/add_to_app/books/flutter_module_books/pigeon-9.0.0bleroux/samples:dependabot/pub/add_to_app/books/flutter_module_books/pigeon-9.0.0Copy head branch name to clipboard