[ENH] - add conda-store black-box testing to ci

[dcmcand]

Feature description

Conda-store has black box user tests available at https://github.com/conda-incubator/conda-store/tree/main/conda-store-server/tests/user_journeys.

Value and/or benefit

Adding this to our CI pipeline will ensure that conda-store functionality works.

Anything else?

No response