Fix another typo

ci/registry_cleanup.sh

@@ -3,7 +3,7 @@
 PROJECT_NAME="cspp_geo%2Fcspp-geo-web-viewer"
 PROJ_URL="${CI_API_V4_URL}/projects/${PROJECT_NAME}"
 registries_json=$(curl -H "PRIVATE_TOKEN: ${CI_JOB_TOKEN}" "${PROJ_URL}/registry/repositories")
-if [[ $? -eq 0 ]]; then
+if [[ $? -ne 0 ]]; then
     echo "Could not download list of container registries"
     exit 1
 fi