Fix URL where to download chectl install script from

[dmytro-ndp]

What does this PR do?

Download chectl install script from che-incubator.github.io

Screenshot/screencast of this PR

What issues does this PR fix or reference?

eclipse-che/che#22925

How to test this PR?

PR Checklist

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

• 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.

[openshift-ci]

Hi @dmytro-ndp. Thanks for your PR.

I'm waiting for a che-incubator member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

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.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: dmytro-ndp, ibuziuk, tolusha

The full list of commands accepted by this bot can be found here.

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[devstudio-release]

Build 3.14 :: dsc_3.x/1890: Console, Changes, Git Data

[devstudio-release]

Build 3.14 :: dsc_3.x/1891: Console, Changes, Git Data

[devstudio-release]

Build 3.14 :: dsc_3.x/1891:

3.14.0-CI