Rename ood related steps

.gitlab-ci.yml

@@ -162,7 +162,7 @@ build_gpu_image:
     - packer validate openstack-gpu
     - packer build -machine-readable openstack-gpu | tee gpu_build.log
 
-build_image:
+build_ood_image:
   stage: build
   environment:
     name: knightly
@@ -206,7 +206,7 @@ build_image:
     reports:
       dotenv: image.env
 
-test:
+test_ood_image:
   stage: test
   environment:
     name: knightly