[CustomersDot] Update Ruby gems to support Ruby 3
This issue holds all gems that need to be updated in order to run CustomersDot on Ruby 3.2. | Name | Works on Ruby 3? | Updated? | Breaking changes | | ------ | ------ | ------ | ------ | | [webmock](https://rubygems.org/gems/webmock) | Yes | Yes | No | | [pg](https://rubygems.org/gems/pg) | Yes | Yes | No | | [date](https://rubygems.org/gems/date) | Yes | Yes | No | | [pry](https://rubygems.org/gems/pry) | Yes | Yes | No | | [gitlab-styles](https://rubygems.org/gems/gitlab-styles) | Yes | Yes | No | | [haml-rails](https://rubygems.org/gems/haml-rails) | Yes | Yes | No |
epic