Revert sentry version (#511)

- Caused issues with iOS app build

pubspec.yaml

@@ -38,7 +38,7 @@ dependencies:
   path_provider: ^2.1.3                   # Local file storage
   qr_code_scanner: ^1.0.1                 # Barcode scanning
   sembast: ^3.6.0                         # NoSQL data storage
-  sentry_flutter: ^8.3.0                  # Error reporting
+  sentry_flutter: ^7.7.0                  # Error reporting
   url_launcher: ^6.2.4                    # Open link in system browser
 
 dev_dependencies: