Update Helm release postgres-cluster to v6

clusters/cl01tl/platform/gitea/values.yaml

@@ -229,10 +229,10 @@ backup:
               echo ">> Backups prior to '$DATE_RANGE' will be removed"
               echo ">> Backups to be removed:"
               s3cmd ls ${BUCKET}/cl01tl/ |
-                awk -v file_match="$FILE_MATCH" '$4 < file_match {print $4}'
+                awk file_match="$FILE_MATCH" '$4 < file_match {print $4}'
               echo ">> Deleting ..."
               s3cmd ls ${BUCKET}/cl01tl/ |
-                awk -v file_match="$FILE_MATCH" '$4 < file_match {print $4}' |
+                awk file_match="$FILE_MATCH" '$4 < file_match {print $4}' |
                 while read file; do
                   s3cmd del "$file";
                 done;