Use current sqlite for current Rails versions

Author: moritzhoeppner

Gemfile

@@ -13,11 +13,7 @@ if ENV['ORM'] == 'mongoid'
   gem 'mongoid', ENV['MONGOID_VERSION'] || '~> 7.5'
 end
 
-if ENV['RAILS_VERSION'] == '~> 8.0'
-  gem 'sqlite3', '~> 2.1'
-else
-  gem 'sqlite3', '~> 1.6', '>= 1.6.6'
-end
+gem 'sqlite3', '~> 2.8'
 
 if ['~> 6.1', '~> 7.0'].include? ENV['RAILS_VERSION']
   gem 'concurrent-ruby', '1.3.4'