Bump pigeon from 21.2.0 to 22.2.0 in /add_to_app/books/flutter_module_books #886

Job	Run time
ios-build	9m 0s
Test Flutter stable on ubuntu-latest	15m 48s
android-build	4m 59s
web/samples_index config check	45s
Test Flutter stable on macos-latest	14m 29s
Test Flutter stable on windows-latest	24m 52s
Test Flutter beta on ubuntu-latest	8m 0s
Test Flutter beta on macos-latest	9m 48s
Test Flutter beta on windows-latest	13m 43s
Test Flutter master on ubuntu-latest	7m 45s
Test Flutter master on macos-latest	12m 9s
Test Flutter master on windows-latest	12m 10s
	2h 13m 28s

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