Bump pigeon from 2.0.3 to 4.2.13 in /add_to_app/books/flutter_module_books#461

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dependabot/pub/add_to_app/books/flutter_module_books/pigeon-4.2.13bleroux/samples:dependabot/pub/add_to_app/books/flutter_module_books/pigeon-4.2.13Copy head branch name to clipboard