Merge branch 'update-intallscript-3.10' into 'master'

[installscript] update to dumux 3.10 and dune 2.10

See merge request !308 (merged)

(cherry picked from commit 44213165)

b56a745c [installscript] update to dumux 3.10 and dune 2.10

Co-authored-by: Timo Koch timok@simula.no