scripts/ci/gitlab-pipeline-status: give early feedback on running pipelines

When waiting for a pipeline to run and finish, it's better to give
early feedback, and then sleep and wait, than the other wait around.

Specially for the first iteration, it's frustrating to see nothing
while the script is sleeping.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20200904164258.240278-4-crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

scripts/ci/gitlab-pipeline-status

@@ -77,8 +77,8 @@ def wait_on_pipeline_success(timeout, interval,
 
         status = get_pipeline_status(project_id, commit_sha)
         if status['status'] == 'running':
-            time.sleep(interval)
             print('running...')
+            time.sleep(interval)
             continue
 
         if status['status'] == 'success':