Add PR checks (smoke test and API)

[svor]

What does this PR do?

Adds 2 PR checks:

• Smoke Test / smoke-test (pull_request). It is running on minikube and configured in GitHub workflow file. This check uses factory flow and GUI to check conditions.
• ci/prow/v12-plugins-test-pr-check. This scenario is running on OpenShift v12, all coniguration files are located in .ci folder. It uses API to generate a devworkspace and start it by oc commands, no GUI usage.

Both PR checks verify if the workspace is started and the project is cloned. The workspace uses an editor from a plugin registry image that was built from the PR that should be validated.

What issues does this PR fix or reference?

eclipse-che/che#22215

How to test this PR?

See PR checks in this PR.

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.

[github-actions]

Click here to review and test in web IDE:

[svor]

/retest

[svor]

/retest

[svor]

/retest

[svor]

/test all

[svor]

/retest

[svor]

/test all

[svor]

/retest

[svor]

/retest

[svor]

/retest

[openshift-merge-robot]

@svor: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/v12-plugins-test-pr-check	7420be2	link	true	/test v12-plugins-test-pr-check
ci/prow/v12-images	ba8913c	link	true	/test v12-images

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[codecov]

Codecov Report

Merging #1793 (08421c3) into main (fa10086) will not change coverage.
Report is 1 commits behind head on main.
The diff coverage is n/a.

@@            Coverage Diff            @@
##              main     #1793   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           21        21           
  Lines          563       563           
  Branches        88        88           
=========================================
  Hits           563       563           

[artaleks9]

Looks good to merge

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: artaleks9, svor

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