8e093581b5
This needs https://github.com/google/or-tools/pull/4745 to skip SCIP tests if built without SCIP (which we currently do). The tests currently still fail on aarch64-linux (https://github.com/google/or-tools/issues/4746), so we only enable for x86_64-linux. It can be re-tested with a more recent version once or-tools is updated.