fix(ruby): Re enabling ruby plugin

[sunix]

What does this PR do?

Ruby plugin was disabled https://github.com/eclipse/che-plugin-registry/pull/829/files
Re enabling ruby plugin now that it is available: castwide/vscode-solargraph#204 (comment)

Screenshot/screencast of this PR

What issues does this PR fix or reference?

How to test this PR?

try the devfile:

apiVersion: 1.0.0
metadata:
  generateName: ruby-test-reenabling-
projects:
  - name: rails-mister-cocktail
    source:
      location: 'https://github.com/omontigny/rails-mister-cocktail'
      type: github
components:
  - id: castwide/solargraph/latest
    registryUrl: 'https://sunix-plugin-registry-ruby-z6b4p.surge.sh/v3/'
    type: chePlugin

open a .rb file and try auto complete.

PR Checklist

As the author of this Pull Request I made sure that:

• The Eclipse Contributor Agreement is valid
• Code produced is complete
• Code builds without errors
• Tests are covering the bugfix
• The repository devfile is up to date and works
• Sections What issues does this PR fix or reference and How to test this PR completed
• Relevant user documentation updated
• Relevant contributing documentation updated
• CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

[benoitf]

Tested. completion works as expected
https://user-images.githubusercontent.com/436777/108063528-a3f4db00-705b-11eb-85a4-54de308750ea.mp4

But it would be cool if you disable the check-for-updates

because opening the workspace, I've a bottom right popup telling me that there is a new version available

[sunix]

Tested. completion works as expected
https://user-images.githubusercontent.com/436777/108063528-a3f4db00-705b-11eb-85a4-54de308750ea.mp4

But it would be cool if you disable the check-for-updates

because opening the workspace, I've a bottom right popup telling me that there is a new version available

OK @benoitf could you file an issue for that ?

[benoitf]

@sunix eclipse-che/che#19079