Update ae108 tests to allow use of MPI and update docker config to use MPI on CI machines (noether et al) to come in line with Euler
There's a mismatch between noether and Euler configs. It makes sense for both setups to me as alike as possible. noether currently does not make use of MPI functionality, making use of CI verified code on Euler problematic. Running without MPI on Euler loses a lot of functionality in terms of parallelism