[T] Relax some tolerances.

Tests/Data/HydroMechanics/StaggeredScheme/ConsolidationBenchmark/consolidation_benchmark.prj

@@ -300,7 +300,7 @@
         <vtkdiff>
             <file>ConsolidationBenchmark_ts_12_t_6.000000.vtu</file>
             <field>epsilon</field>
-            <absolute_tolerance>1e-15</absolute_tolerance>
+            <absolute_tolerance>2e-15</absolute_tolerance>
             <relative_tolerance>1e-15</relative_tolerance>
         </vtkdiff>
         <vtkdiff>

Tests/Data/HydroMechanics/StaggeredScheme/ConsolidationBenchmark/consolidation_benchmark_mono.prj

@@ -238,7 +238,7 @@
         <vtkdiff>
             <file>ConsolidationBenchmark_mono_ts_6_t_6.000000.vtu</file>
             <field>epsilon</field>
-            <absolute_tolerance>1e-15</absolute_tolerance>
+            <absolute_tolerance>2e-15</absolute_tolerance>
             <relative_tolerance>1e-15</relative_tolerance>
         </vtkdiff>
         <vtkdiff>