added CI script for debugging purpose

Closes BMK-77

.gitlab-ci.yml

 stages:
+- debug
 - build-image
 - test-build-image
 - build
 - test
     
+job_debug:
+  stage: debug
+  only:
+    refs:
+    - qa
+  tags:
+  - hep-workload-docker-builder # for private runners
+  image: $CI_REGISTRY_IMAGE/hep-workload-builder:latest
+  variables:
+    HEP_WL_SPEC_FILE: $CI_PROJECT_DIR/atlas/kv-bmk-v17.8.0.9/kv-bmk.spec
+  script:
+  - echo $HEP_WL_SPEC_FILE
+  - pwd
+  - ls 
+  - sleep 3600s
+  
 job_make_builder_image:
   stage: build-image
   only: