utils/quick-setup.sh does not allow containerlab version to be pinned.
I think the least surprising behavior would be that if you use, for example, v0.69.0 of the utils/quick-setup.sh (https://github.com/srl-labs/containerlab/blob/v0.69.0/utils/quick-setup.sh) it will install containerlab v0.69.0. Actual behavior is that it installs the latest available version of containerlab.
An environment variable or parameter that allows to select which containerlab version to install would also be nice.