[linear][seqsolverbacked] Fix compilation error for dune-2.7 related to solveWithParamTree
needs to be backported to 3.2
@nedc Could you please test this with test_kovasznay? I think you might have dune-2.7 lying around.
needs to be backported to 3.2
@nedc Could you please test this with test_kovasznay? I think you might have dune-2.7 lying around.