Bump flutter_riverpod from 1.0.4 to 2.6.0

Bumps [flutter_riverpod](https://github.com/rrousselGit/riverpod) from 1.0.4 to 2.6.0.
- [Commits](rrousselGit/riverpod@v1.0.4...flutter_riverpod-v2.6.0)

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

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

pubspec.yaml

@@ -19,7 +19,7 @@ dependencies:
       url: https://github.com/Thogsit/receive_sharing_intent
   shared_preferences: ^2.0.5
   flutter_svg: ">=1.0.3 <3.0.0"
-  flutter_riverpod: ^1.0.3
+  flutter_riverpod: ^2.6.0
   intl: 
   flutter_secure_storage: ^9.0.0
   smooth_page_indicator: ^1.0.0+2