[test] fix co2 tests for Dumux 2.x and Dune 2.6
Intersections don't offer boundaryId()
anymore since Dune 2.6.
ALUGrid still offers it via impl()
. Employ this if Dune >= 2.6
is used.
(cherry picked from commit 08da3c23)
Intersections don't offer boundaryId()
anymore since Dune 2.6.
ALUGrid still offers it via impl()
. Employ this if Dune >= 2.6
is used.
(cherry picked from commit 08da3c23)