random seed in test not random enough ?

[valentin-krasontovitsch]

Describe the bug The following test fails in CI github action on a PR with unrelated changes:

FAILED libres_tests/integration/test_parameter_sample_types.py::test_initialize_random_seed[We initialize twice without setting the random seed either time so expect the result to be different both times]

This flakiness / unexpected failure should be addressed. The test has been disabled in the meantime, cf. PR #3869 / commit 408b630cdb0f269cae4f6ad576ffb7033bf98267