In the CI web app add support for a CI phase name "ci_validation"
Currently the CI phase used for ti run CI validation test is named "ci_tests_grid".
In order to give a better name to this CI phase we can use the name "ci_validation"
For backward compatibility we can use both names "ci_tests_grid" and "ci_validation" to identify this CI phase.
Please, update the CI web app code to process these two CI phases the same way.