Update sqlite3 version

Rails 7.2 expects sqlite 3 > 2.1
https://github.com/rails/rails/blob/v8.0.2/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb#L14

Author: ilianah

restpack_serializer.gemspec

@@ -24,7 +24,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'restpack_gem', '~> 0.0.9'
   gem.add_development_dependency 'rake', '~> 13'
   gem.add_development_dependency 'guard-rspec', '~> 4.7'
-  gem.add_development_dependency 'sqlite3', '~> 1.3'
+  gem.add_development_dependency 'sqlite3', '~> 2.1'
   gem.add_development_dependency 'factory_bot', '~> 4.8'
   gem.add_development_dependency 'database_cleaner'
   gem.add_development_dependency 'rspec'