Use optional large runner for gdk builds

f1acb815 · Andrejs Cunskis · da1e86ff · f1acb815
--- a/.gitlab/ci/build-images.gitlab-ci.yml
+++ b/.gitlab/ci/build-images.gitlab-ci.yml
@@ -48,7 +48,7 @@ build-gdk-image:
    - .base-image-build-buildx
    - .build-images:rules:build-gdk-image
  tags:
-    - docker
+    - $GITLAB_LARGE_RUNNER_OPTIONAL
  stage: build-images
  needs:
    - job: gdk:compile-test-assets