chore(deps): bump permission_handler from 11.4.0 to 12.0.0+1 in /example

Bumps [permission_handler](https://github.com/baseflow/flutter-permission-handler) from 11.4.0 to 12.0.0+1.
- [Commits](Baseflow/flutter-permission-handler@permission_handler_v11.4.0...permission_handler_v12.0.0)

---
updated-dependencies:
- dependency-name: permission_handler
  dependency-version: 12.0.0+1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

example/pubspec.yaml

@@ -27,7 +27,7 @@ dependencies:
   google_navigation_flutter:
     path: ../
   http: ^1.1.2
-  permission_handler: ^11.3.1
+  permission_handler: ^12.0.0+1
 
 dev_dependencies:
   flutter_lints: ^4.0.0