[T|TH2M/H2M/OrthotropicSwelling] Adjust tol. for result comparisons

Tests/Data/TH2M/H2M/OrthotropicSwelling/square.prj

@@ -458,13 +458,13 @@
         <vtkdiff>
             <regex>square_ts_.*.vtu</regex>
             <field>liquid_pressure_interpolated</field>
-            <absolute_tolerance>1e-15</absolute_tolerance>
+            <absolute_tolerance>1e-13</absolute_tolerance>
             <relative_tolerance>0</relative_tolerance>
         </vtkdiff>
         <vtkdiff>
             <regex>square_ts_.*.vtu</regex>
             <field>saturation</field>
-            <absolute_tolerance>3e-15</absolute_tolerance>
+            <absolute_tolerance>1.9e-14</absolute_tolerance>
             <relative_tolerance>4e-15</relative_tolerance>
         </vtkdiff>
         <vtkdiff>