Prevent to run concurrently some module tests
Some modules like account_payment_stripe
and web_shop_shopify
have issue to run concurrently.
(I suspect that the web services slow down the processing)
Se we could use the resource group to prevent to run them concurrently.
I think .gitlab-scripts/generate-ci.py
could be extended to add a resource_groups
with the name of the module for a list of module.