chore: update dependencies and configurations for iOS build

- Updated mobile_scanner dependency version to 7.0.0 in pubspec.yaml.
- Adjusted versions of several packages in pubspec.lock.
- Added exclusion of arm64 architecture for iOS simulator in Podfile and xcconfig files to support Apple Silicon.
- Cleaned up Podfile.lock by removing unused dependencies.

This update ensures compatibility with the latest mobile_scanner and improves build stability on M1/M4 devices.

ios/Podfile

@@ -39,5 +39,10 @@ end
 post_install do |installer|
   installer.pods_project.targets.each do |target|
     flutter_additional_ios_build_settings(target)
+    target.build_configurations.each do |config|
+      # ML Kit исключает arm64 для симулятора → сборка только x86_64.
+      # На M1 это ещё могло работать через Rosetta; на M4 симулятор только arm64.
+      config.build_settings['EXCLUDED_ARCHS[sdk=iphonesimulator*]'] = 'i386'
+    end
   end
 end