[test][facet][1pconvergence] do not use umfpack

test/multidomain/facet/1p_1p/analytical/main.cc

@@ -334,7 +334,7 @@ int main(int argc, char** argv) try
                                                   couplingManager);
 
     // the linear solver
-    using LinearSolver = UMFPackBackend;
+    using LinearSolver = BlockDiagAMGBiCGSTABSolver;
     auto linearSolver = std::make_shared<LinearSolver>();
 
     // the non-linear solver

test/multidomain/facet/1p_1p/analytical/params.input

@@ -19,6 +19,10 @@ Problem.Name = lowdim
 LiquidDensity = 1.0
 LiquidKinematicViscosity = 1.0
 
+[LinearSolver]
+ResidualReduction = 1e-20
+MaxIterations = 2000
+
 [L2Error]
 QuadratureOrder = 1