bookshelf: missing Gemfile.lock, missing updates

Multiple errors recurring on getting-started/bookshelf nightly tests, which reports argument and nomethod errors on dependencies

```
An error occurred while loading ./spec/features/book_management_spec.rb.
Failure/Error: require File.expand_path("../../config/environment", __FILE__)

ArgumentError:
wrong number of arguments (given 3, expected 2)
# ./config/environment.rb:18:in `'
# ./spec/spec_helper.rb:17:in `'
# ./spec/features/book_management_spec.rb:14:in `'

An error occurred while loading ./spec/models/book_spec.rb.
Failure/Error: require File.expand_path("../../config/environment", __FILE__)

NoMethodError:
undefined method `operations' for #

MiddlewareStackProxy.new(@operations + other.operations, @delete_operations + other.delete_operations)
^^^^^^^^^^^
# ./config/environment.rb:18:in `'
# ./spec/spec_helper.rb:17:in `'
# ./spec/models/book_spec.rb:14:in `'
No examples found.
```

It looks like dependabot isn't updating this sample. There's no committed Gemfile.lock, that is being updated in other samples.

It's stuck with a very out dated version of Rails which isn't supported on the current Ruby Oldest (https://www.fastruby.io/blog/ruby/rails/versions/compatibility-table.html)

This sample would need to be updated to latest Rails versions and manually updated if any updates required for mulitple major version updates.

Bắt đầu với getting-started/bookshelf/config/environment.rb và phần thiết lập dependency, sau đó chạy các spec đang thất bại trong spec/features/book_management_spec.rb và spec/models/book_spec.rb. Cập nhật các dependency Rails của sample và commit Gemfile.lock của nó, sau đó xác minh rằng các bài kiểm tra nightly không còn báo cáo các lỗi loading.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.