Bump shared_preferences from 2.0.20 to 2.2.0

Bumps [shared_preferences](https://github.com/flutter/packages/tree/main/packages/shared_preferences) from 2.0.20 to 2.2.0.
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/commits/shared_preferences-v2.2.0/packages/shared_preferences)

---
updated-dependencies:
- dependency-name: shared_preferences
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pubspec.yaml

@@ -18,7 +18,7 @@ dependencies:
     sdk: flutter
   flutter_localized_locales: ^2.0.3
   provider: ^6.0.5 # state manager
-  shared_preferences: ^2.0.20
+  shared_preferences: ^2.2.0
   path_provider: ^2.0.11
   url_launcher: ^6.1.6
   permission_handler: ^10.2.0