Disable nightly singularity build for stable branch

.gitlab-ci.yml

@@ -308,17 +308,17 @@ jug_xl:singularity:default:
   variables:
     BUILD_IMAGE: "jug_xl"
 
-jug_xl:singularity:nightly:
-  stage: deploy
-  extends: .singularity
-  needs: 
-    - version
-    - jug_xl:nightly
-  variables:
-    BUILD_IMAGE: "jug_xl"
-  script:
-    - mkdir build
-    - singularity pull build/${BUILD_IMAGE}.sif docker://${CI_REGISTRY_IMAGE}/${BUILD_IMAGE}:${NIGHTLY_TAG}
+#jug_xl:singularity:nightly:
+#  stage: deploy
+#  extends: .singularity
+#  needs: 
+#    - version
+#    - jug_xl:nightly
+#  variables:
+#    BUILD_IMAGE: "jug_xl"
+#  script:
+#    - mkdir build
+#    - singularity pull build/${BUILD_IMAGE}.sif docker://${CI_REGISTRY_IMAGE}/${BUILD_IMAGE}:${NIGHTLY_TAG}
 
 ## trigger juggler rebuild on nightly schedule to ensure both images remain in sync
 juggler:master: