Log Message:
devel/ruby-shoulda-context: update to 2.0.0

Update ruby-shoulda-context to 2.0.0.

## 2.0.0 (2020-06-13)

### Backward-incompatible changes

* Drop support for RSpec 2 matchers. Matchers passed to `should` must conform
  to RSpec 3's API (`failure_message` and `failure_message_when_negated`).
* Drop support for older versions of Rails. Rails 4.x-6.x are the
  only versions supported now.
* Drop support for older versions of Ruby. Ruby 2.4.x-2.7.x are the only
  versions supported now.

### Bug fixes

* Fix how test names are generated so that when including the name of the
  outermost test class, "Test" is not removed from the class name if \ 
it does not
  fall at the end.
* Remove warning from Ruby about `context` not being used when using the gem
  with warnings enabled.
* Fix macro autoloading code. Files intended to hold custom macros which are
  located in either `test/shoulda_macros`, `vendor/gems/*/shoulda_macros`, or
  `vendor/plugins/*/shoulda_macros` are now loaded and mixed into your test
  framework's automatically.
* Restore compatibility with Shoulda Matchers, starting from 3.0.
* Fix some compatibility issues with Minitest 5.
* Fix running tests within a Rails < 5.2 environment so that when tests fail, an
  error is not produced claiming that Minitest::Result cannot find a test
  method.