Fix sed in uploadQC CI unit

.gitlab-ci.yml

@@ -331,7 +331,7 @@ uploadQC:
     cookie=$(cat credential.json | grep -A 1 '\"staging.gudmap.org\": {' | grep -o '\"cookie\": \".*\"') &&
     cookie=${cookie:11:-1} &&
     if [ "${exist}" != "[]" ]; then
-      rids=$(echo ${exist} | grep -o '\"RID\":\".\{7\}' | sed 's/^.\{7\}\/\/') &&
+      rids=$(echo ${exist} | grep -o '\"RID\":\".\{7\}' | sed 's/^.\{7\}//') &&
       for rid in ${rids}; do
         singularity run 'docker://gudmaprbk/deriva1.3:1.0.0' python3 ./workflow/scripts/deleteEntry.py -r ${rid} -t mRNA_QC -o staging.gudmap.org -c ${cookie} &&
         echo old mRNA QC RID deleted - ${rid}