Bump pigeon in /add_to_app/books/flutter_module_books (#1092)

Bumps [pigeon](https://github.com/flutter/packages) from 2.0.3 to 3.0.0.
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/compare/pigeon-v2.0.3...pigeon-v3.0.0)

---
updated-dependencies:
- dependency-name: pigeon
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

add_to_app/books/flutter_module_books/pubspec.lock

@@ -171,7 +171,7 @@ packages:
       name: pigeon
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "3.0.0"
   pub_semver:
     dependency: transitive
     description:

add_to_app/books/flutter_module_books/pubspec.yaml

@@ -13,7 +13,7 @@ dependencies:
     sdk: flutter
 
 dev_dependencies:
-  pigeon: ^2.0.2
+  pigeon: ">=2.0.2 <4.0.0"
   flutter_test:
     sdk: flutter
   flutter_lints: ^1.0.4