createproject.py: increase cut off for errors to 9000
createproject.py: increase cut off for errors to 9000

Sometimes backtraces are longer than 750.

aspiers/automation,SUSE-Cloud/automation,aspiers/automation,gosipyan/automation,gosipyan/automation,SUSE-Cloud/automation,aspiers/automation,SUSE-Cloud/automation,aspiers/automation,gosipyan/automation,SUSE-Cloud/automation,gosipyan/automation