add sleep

Signed-off-by: Ishita Sequeira <ishiseq29@gmail.com>

Author: ishitasequeira

test/e2e/suite/006-apps-in-any-namespace/02-run-updater.yaml

@@ -4,4 +4,5 @@ commands:
 - script: |
     ${SRC_DIR}/dist/argocd-image-updater run --once \
       --argocd-namespace argocd-image-updater-e2e \
-      --loglevel trace
+      --loglevel trace
+    sleep 30