.gitlab-ci.yml: Use the latest oniro branch for includes

That is 'kirkstone' now.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

.gitlab-ci.yml

@@ -9,7 +9,7 @@ stages:
 
 include:
  - project: eclipse/oniro-core/oniro
-   ref: dunfell
+   ref: kirkstone
    file:
     - .oniro-ci/dco.yaml
     - .oniro-ci/reuse.yaml