Revert "chore(deps): bump flutter_lints from 5.0.0 to 6.0.0 in /packages/android_alarm_manager_plus/example (#3592)"

This reverts commit 6c95b60.

Author: miquelbeltran

packages/android_alarm_manager_plus/example/pubspec.yaml

@@ -18,7 +18,7 @@ dev_dependencies:
     sdk: flutter
   integration_test:
     sdk: flutter
-  flutter_lints: ^6.0.0
+  flutter_lints: ">=4.0.0 <6.0.0"
 
 flutter:
   uses-material-design: true