quick hack - test 10.* only as 11.* not on mirrors yet

generate-stackbrew-library.sh

 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-GLOBIGNORE=examples/:.*/:test/:11.5/:11.5-ubi/:11.6/:11.6-ubi/:main/:main-ubi/
+GLOBIGNORE=examples/:.*/:test/:11.*/:11.*-ubi/:11.6/:11.6-ubi/:main/:main-ubi/
 
 err() {
   echo >&2 "ERROR: $*"