Merge branch 'cherry-pick-512f1d84' into 'releases/3.7'

Merge branch 'fix/changesolver-to-sequential' into 'master'

See merge request !3550

test/freeflow/navierstokes/kovasznay/main.cc

@@ -134,7 +134,7 @@ int main(int argc, char** argv)
 
     // the linear solver
     using LinearSolver = Dumux::UzawaBiCGSTABIstlSolver<
-        LinearSolverTraits<GridGeometry>, LinearAlgebraTraitsFromAssembler<Assembler>
+        SeqLinearSolverTraits, LinearAlgebraTraitsFromAssembler<Assembler>
     >; // if rho \neq 1, use UMFPack rather than BIGCStab
     auto linearSolver = std::make_shared<LinearSolver>();