```ruby
require 'action_dispatch'

module Rails::Rack
  Static = Deprecation::DeprecatedConstantProxy.new('Rails::Rack::Static', ActionDispatch::Static)
end
```

Fix Rails::Rack::Static deprecated constant proxy
user
```ruby
require 'action_dispatch'

module Rails::Rack
  Static = ActiveSupport::Deprecation::DeprecatedConstantProxy.new('Rails::Rack::Static', ActionDispatch::Static)
end
```
assistant