Release Environments - GET - Run QA against environments

Context

One Exit Criteria of &1567 (closed) is to deploy Release Environments (RE) using GitLab Environment Toolkit (GET), so RE can support GitLab Geo setup.

In #21300 (closed), an automation was done which deploys to a GET environment for every commit merged to stable branches. So, the next step is to run the same QA Smoke Test that we are running against the Helm setup (link to the CI job).

Exit Criteria

• The same QA as the one used for the Helm setup release environment (link to the CI job) is ran against the corresponding GET environment
• The new QA job does not block stable branch pipeline since it is still in experimental phase