Migrate Che-Theia to eclipse-che GitHub organization

[azatsarynnyy]

Is your task related to a problem? Please describe.

We've noticed that running the GitHub Workflows on Che-Theia repository takes a much longer time last few weeks. Most likely, it's due to a shared queue for eclipse organization on GitHub.

Describe the solution you'd like

Migrate Che-Theia repository from eclipse GitHub organization to eclipse-che org.

Describe alternatives you've considered

Additional context

Sub-tasks

• Add a request to
  • https://bugs.eclipse.org/bugs/show_bug.cgi?id=571958
• invite Che-Theia contributors who have the expired invitation to the new organization
  • https://bugs.eclipse.org/bugs/show_bug.cgi?id=570816
• Notify people on che-dev ML
• Notify QE team to setup the Happy Path PR check to a new repository
• Notify Prod team to update some release scripts
• Update the repository location in https://github.com/eclipse/che-plugin-registry/blob/master/che-editors.yaml
  • Update Che-Theia repository location che-plugin-registry#906
• Replace eclipse organization occurrences with eclipse-che in Che-Theia sources
  • Update the references to the new GitHub organization che-theia#1054
  • Update the references to the new GitHub organization che-theia#1057
• Update https://github.com/eclipse/che/blob/master/.repositories.yaml
  • Update the references to a new Che-Theia repository #19432

[flacatus]

Hi @azatsarynnyy !
Deploy team already migrate repos to new organization. Please use our bugzilla to migrate to avoid creating separate Bugzilla issues for each repo migration.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=571958

[azatsarynnyy]

Thank you @flacatus for the bugzilla link!

[azatsarynnyy]

All the sub-tasks are done \o/