pyiron config for integration tests

[niklassiemer]

I just tried to fix the integration tests of _base for _contrib in pyiron/pyiron_base#1111 which failed since _contrib does not have a pyironconfig.py any more. I wanted to use the actions, however, I assume I need the resources to point to the _contrib and not to the _base resources. Therefore, we probably need to include this as variables in the pyironsetup action instead of using the current working directory in a fixed way
https://github.com/pyiron/actions/blob/9541f956565db661666c1930aee57d6a782817ba/.support/pyironconfig.py#LL7C85-L7C85