test(well) : reuse singlePhaseFlow dataset

To avoid LFS storage limit, test_well_intersection will reuse the mesh
from the other deck xml.

Author: lucas-givord

geos-trame/tests/data/geosDeck/geosDeck.xml

@@ -64,9 +64,10 @@
     </Solvers>
 
     <Mesh>
+        <!-- Reuse singlePhaseFlow for the testing -->
         <VTKMesh
             name="SyntheticMesh"
-            file="ModelA.vtu"
+            file="../singlePhaseFlow/synthetic.vtu"
             logLevel="1" >
 
             <!-- Block to comment to deactivate external well definition -->